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Once positioned in space, the Hubble Space Telescope will capture light from sources twenty times fainter compared to those that can be detected by ground-based instruments. (A) compared to those that can be detected (B) compared to those they can detect (C) than that can be detected (D) than those that can be detected (E) than those detecting
答案是D,想不通为撒C不对?一定要source和source比较吗?为什么不能是light?还是因为that不能在里面作主语的缘故? 请NN指点!!! |
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