注意:此页面搜索的是所有试题
Thephrase“thiselementoftheunknown”(Paragraph3)refersto___________.()
·theextensionofearthquakezones
·theextensionofearthquakezones
·whenandwhereearthquakesmayoccur
·whatbigdamageearthquakesmaycause

参考答案