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标题: 885 SEC C-18(THEN) [打印本页]

作者: joymermaid530 时间: 2005-6-17 10:43
标题: 885 SEC C-18(THEN)

885 SEC C-18(THEN)
18. The owner of Steele’s Grocery in Osage, Ohio, saved $600 monthly on heat during the winter by putting all his refrigerator air compressors together in an insulated compartment, then installing two fans and a duct that carried waste heat from the compressors into the main part of the store.
(A) then installing two fans and a duct that carried
(B) then he installing two fans and a duct that carried
(C) then two fans were installed with a duct that carried
(D) installing two fans, and then carrying through a duct
(E) installing two fans, and a duct carrying

then到底是做甚么词啊谢谢

作者: bigbeard 时间: 2005-6-17 13:38

同问

作者: liliy4gmat 时间: 2005-6-17 14:25

选a吧，then是副词，然后啊

putting与installing平行，

that 指代fans and duct

对吗

作者: liliy4gmat 时间: 2005-6-20 12:06
UP

作者: Avantasia 时间: 2005-6-20 22:01
感觉应该是副词.

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