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【多选题】
下列属于草质藤本的有( )A.
何首乌
B.
铁线莲
C.
常春藤
D.
爬山虎
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【简答题】阅读理解。 Most middle school students wear uniforms. Some students like uniforms, but others don't. However, recently, a Japanese government survey (政府调查) shows that more students in Japan like uniforms n...
【单选题】Teenagers have all kinds of dreams. _____, some students would like to go to the moon some day. [ ]
A.
After all
B.
At once
C.
In fact
D.
For example
【简答题】工业上按颜色把金属分为( )金属和( )金属。
【判断题】In some countries of Asia or the Middle East, like Iran, students take an exit exam in their last year of high school. The people with the highest scores attend the best universities in the country.()
A.
正确
B.
错误
【简答题】为了提高放大电路带负载能力,使负载能得到更稳定的工作电压,则需引入 _ _ 反馈。
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