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2024年国家开放大学答案
“波形编辑界面”能同时对一个或多个波形文件进行操作,所操作的波形文件可以来自多轨界面的文件。(判断题)
.对
.错
以下关于偶然误差的叙述正确的是( )(单选题)
.大小误差出现的几率相等
.正负误差出现的几率相等
.正误差出现的几率大于负误差
.负误差出现的几率大于正误差
下列社会救助对象不属于根据造成贫困的原因进行分类的是( )。(单选题)
.患难者
.无依无靠有没有生活来源的社会成员
.有收入来源但生活水平低于国家法定最低标准的社会成员
.因突发事件造成生活一时拮据的公民
国际标准化组织ISO 定义了网络管理的五个功能域:分别是1 、2 、3 、4 和5 。(填空题)
{}
简述电磁感应传感器工作产生信号的过程。(单选题)
.当转子的凸齿接近传感器时传感器磁场即开始扭曲,在电磁感应传感器的线圈感应出正向电压。转子凸齿从传感器离开时,磁场发生相反的变化,在电磁感应传感器的线圈中感应出负向电压,到转子齿沟与传感器凸出部分对正时,由于不再有磁场变化,也就不产生感应电压。
.当转子的凸齿接近传感器时传感器磁场即开始扭曲,在电磁感应传感器的线圈感应出负向电压。转子凸齿从传感器离开时,磁场发生相反的变化,在电磁感应传感器的线圈中感应出正向电压,到转子齿沟与传感器凸出部分对正时,由于不再有磁场变化,也就不产生感应电压。
.当转子的凸齿接近传感器时传感器磁场即开始扭曲,在电磁感应传感器的线圈感应出正向电压。转子凸齿从传感器离开时,磁场发生相反的变化,在电磁感应传感器的线圈中感应出零电压,到转子齿沟与传感器凸出部分对正时,感应负电压。
.当转子的凸齿接近传感器时传感器磁场即开始扭曲,在电磁感应传感器的线圈感应出负向电压。转子凸齿从传感器离开时,磁场发生相反的变化,在电磁感应传感器的线圈中感应出零电压,到转子齿沟与传感器凸出部分对正时,感应正电压。
噻嗪类利尿药会引起强心苷类中毒的机制为( )。(单选题)
.减慢强心苷类的代谢,增高其血药浓度.,.
能减少强心苷类药物的血浆蛋白结合率,增加其游离血药浓度.,.
通过利尿引起低钾血症、后者可增加强心苷类药物的毒性.,.
以上说法都正确.,.
增加心肌细胞对强行苷类的敏感性
二、阅读理解:阅读下面的短文,根据文章内容从A、B、C三个选项中选出一个最佳选项。
Can you imagine a world without the Internet It’s surprising to think about it.
Now, China has more than 162 million Internet users, according to the China Internet Network Information Centre. This is the second highest number of user in the world after the United States.Today, 66% of Chinese “netizens(网民)”are teenagers. “They spend about thirteen hours every week online,”said Qian Hulin, an Internet expert(专家). Doctor Song in Beijing Xuanwu Hospital said about 14% of Chinese netizens who are teens often lasted over ten hours to play online games.
The main reasons why teenagers surf the Web are to search for information, to communicate with others and to have fun. On the Internet, teenagers can find out almost anything. And surfing the Web can help students with their homework and widen their knowledge.
Li Dong, a teacher at No. 41 Middle School in Shijiazhuang, likes her students to use the Internet. “When we talk in class, students who surf the Net usually know more background information than the others,”she said.
In addition, people can use the Internet to write letters or stories and send emails. Many teens keep in touch with their friends online. It is cheaper than phoning somebody far away and also much quicker.
________ has the most Internet users in the world according to the article.1
A. China
B. America
C. Canada
2. There are about___________ Chinese netizens to surf about 13 hours every week.2
A. 107 million old
B. 22.7 million old
C. 107 million young
3. Song said some teenagers continued___________ more than ten hours.3
A. playing online games
B. searching for information
C. chatting with their friends
4. Li Dong in No. 41 Middle School likes her students to use the Internet because she ___________.4
A. thinks surfing the net can help students spend less time on homework
B. thinks her students can get more background information than the others
C. wants her students to talk to her about their hobbies and interests
5. Accordingto the passage, which of the following is the cheapest and quickest way to learn something about friends far away?5
A. Writing a letter to them.
B. Going to see them.
C. Sending emails to them.__3__(完形填空)
.A
.B
.C
<u></u>是指对儿童的良好行为表现给予表扬、鼓励、奖励等肯定性评价,它能提高儿童的积极性,激发儿童亲社会言行的出现。
答案:1 (填空题)
我们的英语老师送给我的是这本字典。(句子翻译(汉译英))
1847年,马克思恩格斯创立了第一个国际性的工人阶级政党( )。(单选题)
.第一国际
.社会工人党
.共产党
.共产主义者同盟
1.结构在规定的时间内,规定的条件下,完成预定功能的能力,称为结构的( )(单选题)
.适用性
.耐久性
.可靠性
.稳定性
从某种意义上说,()是营销策划的灵魂。(单选题)
.产品.,.
意识.,.
创意.,.
创新
汉语的古今字体属于刀笔文字的有:()(多选题)
.甲骨文
.金文
.小篆
.隶书
一位女士拥有5枚戒指、3条手链、4条项链、2副耳环,则她应该( )。(单选题)
.全部佩带
.各佩带一件
.佩带某一类的全部
.佩带总共不超过3件
<p style="text-align: left;">二、阅读理解:阅读下面的短文,根据文章内容进行判断,正确为“T”,错误为“F”。<p style="text-align: center;">New Material Can Cool Buildings
Researchers at StanfordUniversity have developed a new material that can move heat out of buildings and into space. The material can cool buildings even on hot days.
The cooling material is a very thin sheet with many layers that could be placed on a roof like solar panels. However,instead of turning sunlight into energy as solar panels do, the material turns heat into infrared radiation.
Shanhui Fan is an electrical engineering professor at StanfordUniversity. He says that the panels have a layer of material that is like sand. The panels alsoact like a mirror. They take heat out of buildings and reflect the light from the sun. Both the heat and sunlight are sent 100 kilometers into outer space.
The panels are cool to the touch, even in the sun. Researchers say they can reduce the indoor temperature to nearly 5 degrees Celsius below the temperature outside.
Mr. Fan says it is like having a window into space. He says the heat is sent directly into space without warming the air.Buildings in developing countries that do not have electricity or air conditioning could use the panels.In areas where one is off-grid,there is a significant potential benefit for storing medicine or even food.In many of these situations, being able to reduce the temperature is important. And this would provide a way to do it.
The Stanford researchers described their technology in the science publication <em>Nature</em>. They say the main problem is creating actual cooling systems using the high-tech panels. It may be possible to develop a cooling spray technology in the next three to five years that could be used on existingsolid structures.
The material can cool buildings onlyon colddays.1
2. The material turns heat intoinfrared radiationbecause it is a very thick sheet with many layers that could be placed on a roof like solar panels.2
3. The heat of the buildingsand sunlight are sent 100 kilometers into outer spaceby the panels.3
4. The off-grid areas may use the panels to reduce the temperature of buildings to store medicine or even food.4
5. Acooling spray technologymay be developedin the near future that could be used on existing solid structures.5 __4__(完形填空)
.T
.F
.对
.错
以下关于偶然误差的叙述正确的是( )(单选题)
.大小误差出现的几率相等
.正负误差出现的几率相等
.正误差出现的几率大于负误差
.负误差出现的几率大于正误差
下列社会救助对象不属于根据造成贫困的原因进行分类的是( )。(单选题)
.患难者
.无依无靠有没有生活来源的社会成员
.有收入来源但生活水平低于国家法定最低标准的社会成员
.因突发事件造成生活一时拮据的公民
国际标准化组织ISO 定义了网络管理的五个功能域:分别是1 、2 、3 、4 和5 。(填空题)
{}
简述电磁感应传感器工作产生信号的过程。(单选题)
.当转子的凸齿接近传感器时传感器磁场即开始扭曲,在电磁感应传感器的线圈感应出正向电压。转子凸齿从传感器离开时,磁场发生相反的变化,在电磁感应传感器的线圈中感应出负向电压,到转子齿沟与传感器凸出部分对正时,由于不再有磁场变化,也就不产生感应电压。
.当转子的凸齿接近传感器时传感器磁场即开始扭曲,在电磁感应传感器的线圈感应出负向电压。转子凸齿从传感器离开时,磁场发生相反的变化,在电磁感应传感器的线圈中感应出正向电压,到转子齿沟与传感器凸出部分对正时,由于不再有磁场变化,也就不产生感应电压。
.当转子的凸齿接近传感器时传感器磁场即开始扭曲,在电磁感应传感器的线圈感应出正向电压。转子凸齿从传感器离开时,磁场发生相反的变化,在电磁感应传感器的线圈中感应出零电压,到转子齿沟与传感器凸出部分对正时,感应负电压。
.当转子的凸齿接近传感器时传感器磁场即开始扭曲,在电磁感应传感器的线圈感应出负向电压。转子凸齿从传感器离开时,磁场发生相反的变化,在电磁感应传感器的线圈中感应出零电压,到转子齿沟与传感器凸出部分对正时,感应正电压。
噻嗪类利尿药会引起强心苷类中毒的机制为( )。(单选题)
.减慢强心苷类的代谢,增高其血药浓度.,.
能减少强心苷类药物的血浆蛋白结合率,增加其游离血药浓度.,.
通过利尿引起低钾血症、后者可增加强心苷类药物的毒性.,.
以上说法都正确.,.
增加心肌细胞对强行苷类的敏感性
二、阅读理解:阅读下面的短文,根据文章内容从A、B、C三个选项中选出一个最佳选项。
Can you imagine a world without the Internet It’s surprising to think about it.
Now, China has more than 162 million Internet users, according to the China Internet Network Information Centre. This is the second highest number of user in the world after the United States.Today, 66% of Chinese “netizens(网民)”are teenagers. “They spend about thirteen hours every week online,”said Qian Hulin, an Internet expert(专家). Doctor Song in Beijing Xuanwu Hospital said about 14% of Chinese netizens who are teens often lasted over ten hours to play online games.
The main reasons why teenagers surf the Web are to search for information, to communicate with others and to have fun. On the Internet, teenagers can find out almost anything. And surfing the Web can help students with their homework and widen their knowledge.
Li Dong, a teacher at No. 41 Middle School in Shijiazhuang, likes her students to use the Internet. “When we talk in class, students who surf the Net usually know more background information than the others,”she said.
In addition, people can use the Internet to write letters or stories and send emails. Many teens keep in touch with their friends online. It is cheaper than phoning somebody far away and also much quicker.
________ has the most Internet users in the world according to the article.1
A. China
B. America
C. Canada
2. There are about___________ Chinese netizens to surf about 13 hours every week.2
A. 107 million old
B. 22.7 million old
C. 107 million young
3. Song said some teenagers continued___________ more than ten hours.3
A. playing online games
B. searching for information
C. chatting with their friends
4. Li Dong in No. 41 Middle School likes her students to use the Internet because she ___________.4
A. thinks surfing the net can help students spend less time on homework
B. thinks her students can get more background information than the others
C. wants her students to talk to her about their hobbies and interests
5. Accordingto the passage, which of the following is the cheapest and quickest way to learn something about friends far away?5
A. Writing a letter to them.
B. Going to see them.
C. Sending emails to them.__3__(完形填空)
.A
.B
.C
<u></u>是指对儿童的良好行为表现给予表扬、鼓励、奖励等肯定性评价,它能提高儿童的积极性,激发儿童亲社会言行的出现。
答案:1 (填空题)
我们的英语老师送给我的是这本字典。(句子翻译(汉译英))
1847年,马克思恩格斯创立了第一个国际性的工人阶级政党( )。(单选题)
.第一国际
.社会工人党
.共产党
.共产主义者同盟
1.结构在规定的时间内,规定的条件下,完成预定功能的能力,称为结构的( )(单选题)
.适用性
.耐久性
.可靠性
.稳定性
从某种意义上说,()是营销策划的灵魂。(单选题)
.产品.,.
意识.,.
创意.,.
创新
汉语的古今字体属于刀笔文字的有:()(多选题)
.甲骨文
.金文
.小篆
.隶书
一位女士拥有5枚戒指、3条手链、4条项链、2副耳环,则她应该( )。(单选题)
.全部佩带
.各佩带一件
.佩带某一类的全部
.佩带总共不超过3件
<p style="text-align: left;">二、阅读理解:阅读下面的短文,根据文章内容进行判断,正确为“T”,错误为“F”。<p style="text-align: center;">New Material Can Cool Buildings
Researchers at StanfordUniversity have developed a new material that can move heat out of buildings and into space. The material can cool buildings even on hot days.
The cooling material is a very thin sheet with many layers that could be placed on a roof like solar panels. However,instead of turning sunlight into energy as solar panels do, the material turns heat into infrared radiation.
Shanhui Fan is an electrical engineering professor at StanfordUniversity. He says that the panels have a layer of material that is like sand. The panels alsoact like a mirror. They take heat out of buildings and reflect the light from the sun. Both the heat and sunlight are sent 100 kilometers into outer space.
The panels are cool to the touch, even in the sun. Researchers say they can reduce the indoor temperature to nearly 5 degrees Celsius below the temperature outside.
Mr. Fan says it is like having a window into space. He says the heat is sent directly into space without warming the air.Buildings in developing countries that do not have electricity or air conditioning could use the panels.In areas where one is off-grid,there is a significant potential benefit for storing medicine or even food.In many of these situations, being able to reduce the temperature is important. And this would provide a way to do it.
The Stanford researchers described their technology in the science publication <em>Nature</em>. They say the main problem is creating actual cooling systems using the high-tech panels. It may be possible to develop a cooling spray technology in the next three to five years that could be used on existingsolid structures.
The material can cool buildings onlyon colddays.1
2. The material turns heat intoinfrared radiationbecause it is a very thick sheet with many layers that could be placed on a roof like solar panels.2
3. The heat of the buildingsand sunlight are sent 100 kilometers into outer spaceby the panels.3
4. The off-grid areas may use the panels to reduce the temperature of buildings to store medicine or even food.4
5. Acooling spray technologymay be developedin the near future that could be used on existing solid structures.5 __4__(完形填空)
.T
.F