单选题
The first paragraph hints (暗示) ______.
A、
backpacks are convenient
B、
someday backpacks can generate electricity
C、
MP3 players and cell phones can also be put into a backpack
D、
backpacks hold things for people so as to free their hands to do other things.
【正确答案】
B
【答案解析】
[精解] 文章细节题。根据题干提示,浏览文章第一段一下找到选项[A]Backpacks are convenient,但是千万别上当,因为这是明确告诉的,而题干要求中的hint是“暗示”之义,所以是错误的;再看选项[C]、[D]只是说到了backpacks本来应该有的功能,因此选项 [B]为正确选项。
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