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标题: [请教]大全470 [打印本页]

作者: 虫子128    时间: 2013-7-25 11:34
标题: [请教]大全470
1.       Lacking  information  about energy  use,  people  tend  to  overestimate  the  amount  of  energy  used  by  equipment,  such  as  lights,  that  are  visible  and  must  be turned  on  and  off  and  underestimate that  used  by  unobtrusive  equipment,  such  as  water  heaters.
(A) equipment,such as lights, that are visible and must be turned on and off andunderestimate that
(B) equipment,such as lights, that are visible and must be turned on and off and underestimateit when
(C) equipment,such as lights, that is visible and must be turned on and off and underestimateit when
(D) visibleequipment, such as lights, that must be turned on and off and underestimatethatD
(E) visibleequipment, such as lights, that must be turned on and off and underestimate itwhen

答案是D,就是有个疑问,同一句话里怎么能出现两个that做不同的成分呢?请教大家啦!





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