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标题: tianshan-9-q26 [打印本页]

作者: fangting630    时间: 2005-1-10 11:14
标题: tianshan-9-q26

Ts-9-q26


There are several ways to build solid walls using just mud or clay, but the most extensively used method has been the forming of bricks out of mud or clay, and after some preliminary air drying or sun drying, they are laid in the wall in mud mortar.


a.


b. forming the mud or clay into bricks, and after some preliminary air drying or sun drying, to lay them


c. having bricks formed from mud or clay, and after some preliminary air drying or sun drying, they were laid                          


d. to form the mud or clay into bricks, and after some preliminary air drying or sun drying, to lay them


e. that bricks were formed from mud or clay, which, after some preliminary air drying or sun drying, were laid.



the answer is d.  why?


what's wrong with the other four answers?


thanks a lot!


作者: lilyzy    时间: 2005-1-10 14:02
D的and后少了一个逗号. 从平行角度, 只有D正确.




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