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问题 多项选择题

门架的间距应根据荷载的大小确定，同时也须考虑交叉拉杆的规格尺寸，一般常用的间距有（）。

A、1.2m

B、1.4m

C、1.5m

D、1.8m

答案

参考答案：A, C, D

改错题

Last night it snowed heavy. When Susan and I got up in this morning, we found the whole garden was covered with thick snow. So we decided clear the path. We got two spades but began our work at once. We both worked so hard that the path was clear soon. Seen this, our father felt very surprising. He smiled happily at us, telling us that we have done a good job and that he was proud for us. Finally Father gave us some pocket money as a reward for the Spring Festival. Susan and I was happy because we had all got the money through labor.
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单项选择题

适用于工期较短、工程量变化幅度不会太大的项目的计价合同的是( )

A．BOT合同
B．成本补偿金合同
C．总价合同
D．单价合同
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