题目内容

How far away is the east coast of the US from the west coast of the US？

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政治革命不同于其它政治发展方式的特征是什么

For this part, you are allowed 30 minutes to write a short essay. You should write at least 150 words following the cartoon given below:

It can be inferred from this passage that the Aeroscraft takes off and lands like______.

简述开环、闭环、半闭环伺服机构的组成及特点。