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问题 多项选择题

设计概算文件一般应包括( )。

A．编制说明

B．封面、签署页及目录

C．总概算表

D．单项工程综合概算表

E．单位工程综合概算表

答案

参考答案：A,B,C,E

填空题
用方框中所给词的适当形式完成这封信。
clean, wash, take, play, do, feed, give, forget, have, you
Dear Linda,
       Thank you for   1   care of my bird-Polly. Could you please   2   these things everyday?   3   her
en ought water and   4    her some rice. Then   5   her bowl after meals. Could you please   6   with her?
Don't   7    to change her water every day, and remember to   8   her cage every night. You are sure
to   9   fun!     
       Thanks, that's all.
                                                                                                                                                  10  
                                                                                                                                               Mary
                                                                                                                                             
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多项选择题

矿井外因火灾事故多因（）等原因造成。

A．放糊炮

B．电焊、气焊

C．井下吸烟

D．煤炭自燃
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