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问题 单项选择题

蓄电池1h放电容量( )。

A．C≤0.5C5
B．Cx≤0.1C5
C．Ichmax≤6C5
D．Ichmax≤3C5

答案

参考答案：A

解析： 《钢铁企业电力设计手册》。

填空题

磷的循环类型是______。
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单项选择题

A project was expected to cost $6 million for 3 months. At the end of 1 month, you use earned value as a performance management tool and get the following information: BCWP=$1.5 million, BCWS=$2.5 million, ACWP=$2.2.million. What is the schedule variance

A) $0.3 million.
B) $-1 million.
C) $1 million。
D) $0.7 million.
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