标题: 求助一道题 OG 10 49 [打印本页] 作者: pfullsomer 时间: 2010-11-13 07:02 标题: 求助一道题 OG 10 49
49.The cameras of the Voyager II spacecraft detected six small, previously unseenmoons circling Uranus, which doubles to twelve the number of satellites nowknown as orbiting the distant planet
(A) whichdoubles to twelve the number of satellites now known as orbiting
(B) doublingto twelve the number of satellites now known to orbit
(C) which doubles to twelve the number of satellites now known in orbitaround (D) doubling to twelve the number of satellites nowknown asorbiting (E) whichdoubles to twelve the number of satellitesnow known thatorbit
答案选择B 为什么不选择D 为什么 now known to orbit 比nowknown as orbiting好？作者: pfullsomer 时间: 2010-11-13 20:39
be know to do, 没有be know doing的结构作者: pfullsomer 时间: 2010-11-13 20:42
没看到那个as，当然to orbit好
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