自考《英语（二）》试题练习：阅读选择（6.2）
2015-06-02 09:10 自考365
单选题
[阅读选择]The ideal battery will store a lot of energy in a small package.Right now， Belcher's model battery， a metallic disk completely built by viruses， looks like a regular watch battery. But inside， its components are very small—so tiny you can only see them with a powerful microscope.
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.
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