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【简答题】
新陈代谢包括 作用和 作用 , 新陈代谢过程中既有 代谢,又有 代谢。
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反馈参考答案：
举一反三
【简答题】A．built B．designed C．intended D．lined
【简答题】The visitors lined up _________the entrance of the zoo.A. to B. in C. on D. at
【简答题】A．packed B．concerned C．marked D．lined
【简答题】A．covered B．filled C．connected D．lined
【单选题】A report consistently brought back by visitors to the U.S. is how friendly, courteous, and helpful most Americans were to them. To be fair, this observation is also frequently made of Canada and Canad...
A.
rude taxi drivers are rarely seen in the U.S.
B.
small-minded officials deserve a serious comment
C.
Canadians are not so friendly as their neighbors
D.
most Americans are ready to offer help
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