So small () that the most powerful microscopes cannot detect them. A: are these particles B: were these particles C: these particles are D: these particles were

2022-06-07

So small () that the most powerful microscopes cannot detect them. A: are these particles B: were these particles C: these particles are D: these particles were

So small () that the most powerful microscopes cannot detect them.
A: are these particles
B: were these particles
C: these particles are
D: these particles were

答案：

A

举一反三

So small ______ that the most powerful microscopes cannot detect them. A: are these particles B: B. were these particles C: these particles are D: D. these particles were
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内容

0
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1
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2
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3
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4
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