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【判断题】
日全食时的天象是以英国业余天文爱好者的名氏命名的。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】最低限度,最少量 n. (m--)
【单选题】（ ）Tom，together with his family，__________to see us tonight．
A.
is coming
B.
are coming
C.
comes
D.
come
【单选题】According to the passage, why has migration been called the greatest challenge of the coming century?
A.
Because of the change of population.
B.
Because of the coming of the new century.
C.
Because of economic and political effects.
D.
Because of human beings' conflicts.
【单选题】One of the most interesting experiments in electronic communication I've ever seen is coming from Wave. It's real—time e-mail. What that means is that as you're typing a message in Wave, either a new ...
A.
It makes people see each other online.
B.
It enables people to send real—time e-mails.
C.
It allows you to send more e-mails at the same time.
D.
It can be easily connected to other communication systems.
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