"So we were then ready to start. " means we ______
A. had already started the work
B. had everything we needed to begin the job
C. were always ready to do file work
查看答案
用垂直图表示施工流水表达方式与横道图表示比较，其特点为()。
A. 施工过程及其先后顺序表达清楚
B. 时间和空间状况形象直观
C. 编制实际工程进度计划比横道图方便
D. 斜向进度线的斜率可以直观地表示出各施工过程的进展速度
A．121 dollars.B．374 dollars.C．53 dollars.D．232 dollars.
A. 121 dollars.
B. 374 dollars.
C. 53 dollars.
D. 232 dollars.
结构较疏松，细菌组成复杂，变化较大，同时含有食物残渣、上皮细胞等的为
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