Once positioned in space, the Hubble Space Telescope will capture light from sou

游客2024-01-13  22

问题 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.

选项 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 D

解析 本题属于第1种表达。A、B不对,因缺than;C也不对,因than之后是一缺先行词的定语从句,属结构分离的错误;E中由未划线部分的by决定了该用过去分词,而不是现在分词,此处的those指sources。
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