注意：此页面搜索的是所有试题
题目内容
（2024年国家开放大学答案）
At the moment our <a href="###">technology</a> is more <a href="###">advanced</a> than theirs, but they are ______________ fast.(单选题)
.catching up.,.
catching on.,.
catching at.,.
catching out
.catching up.,.
catching on.,.
catching at.,.
catching out
参考答案
