单选题
综合类
2016-02-15
Which of the following is true of Belcher's battery mentioned in paragraph 6 ?
A.It is made of metal.
B.It is a kind of watch battery.
C.It can only be seen with a microscope.
D.It is a metallic disk with viruses inside it.
参考答案
D
答案解析
细节判断题。题干:下列关于第六段提及的Belcher的电池的描述,哪一个是对的?第六段第二句中提到的metallic disk是指“金属圆盘”,它是微型电池的外形,其内部是由病毒构成的电池部件。微型电池不是由金属组成的,所以A不是答案。本段提到,这种电池looks like a regular watch battery,与手表里电池外形相似,但并不等同于手表电池,所以B也不是正确选择。文章只是说电池的部件(但并没有说整个电池)小到只能用显微镜才能看到,所以C也不是正确的选择。D才是第六段所要表达的主要内容,因此是答案。
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