题目内容
施工进度计划图编制以后要计算总工期并进行判别，目的是( )。
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下列关于海关统计任务的表述，错误的是：
With other variables remaining constant, if profit margin rises, ROE will:
| A. fall. |
B.
| B. remain the same. |
C.
| C. increase. |
一般民用建筑泡沫消防系统常采用( )泡沫消防系统。
Compared with outcomes that result from collusion, independent action by companies operating in an oligopolistic industry would tend to decrease:
| A. output but not prices. |
B.
| B. prices but not output. |
C.
| C. both output and prices. |
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