【題目】 —What do you think of the 3D-printed ______?

—I’m afraid they are not safe enough to live in.

A. tools B. buildings

C. cars D. toys

【答案】B

【解析】

試題分析:句意:---你認為3V建筑物怎么樣?---我害怕住在里面不夠安全。此題考查名詞,A.工具;B.建筑物;C.小轎車;D.玩具;根據(jù)句意,應選B。

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