题目内容
4．-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 |
分析 -你认为3D打印的建筑物怎么样？-恐怕住在里面不够安全．
解答 答案：B
tools"工具"，buildings"建筑物"，cars"小汽车"，toys"玩具"根据答语I'm afraid they are not safe enough to live in"恐怕住在里面不够安全"可知应该与房屋，楼房有关它们都属于建筑物，故选B
点评 本题考查名词的词义辨析，先弄清所给词的词义，就本题来说随着3D技术的日益完善，选项中提到物品都能打印出来，所以还要根据语境最终选择出正确答案．
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