题目内容

在计算等效三相负荷时，如果只有线间负荷，则单台时的等效三相负荷取线间负荷的 ()倍。

查看答案

搜索结果不匹配？点我反馈

更多问题

听力原文： (9) A 12-storey building has collapsed in the Egyptian capital Cairo after a fire in the lower floors. A number of people are trapped in the wreckage and about 30 people were injured. The fire broke out in the ground floor of the 12-storey building in the modern suburb of Cairo. Police officials say it started in a fast food restaurant or possibly in an adjacent home appliances shop. Hundreds of residents lived in the apartment block. They were able to leave before the building collapsed 3 hours after the fire started. (10) Policemen and firemen, however, were trapped when the upper floors came crashing down. Working under floodlights, their colleagues have been battling to free them from the rabble. The governor of Cairn said the collapsed building had planning permission for 4 floors only. But at least 7 other floors were added on illegally.
The fire broke out in ______ of the 12-storey building.

A. the ground floor
B. the second floor
C. the fourth floor
D. the seventh floor

“上头千条线，下边一根针”指的是()

A. 职能结构
B. 矩阵结构
C. 直线结构
D. 委员会式组织结构

There are two main requirements before the fifth-generation computer can become a reality

A. anticipating
B. tackling
C. manipulating
D. speculating

公司内部出版刊物，作为公司领导与职工沟通的渠道。这是一种什么的沟通方式？()

A. 正式沟通
B. 非正式沟通
C. 非语言沟通
D. 横向沟通