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【单选题】
两台变压器并联运行时，其负荷与短路阻抗（）分配。A.
大小成反比
B.
标值成反比
C.
标值成正比
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举一反三
【单选题】_____was expected, he broke his promise once more, ______left his friends down.
A.
It; which
B.
As; which
C.
It; as
D.
Which ;which
【简答题】实训内容: 审核合同条款 样品跟单 生产跟单 包装跟单 运输跟单
【单选题】____ was expected, he broke his promise once more, ____ let his parents down. [ ]
A.
It; which
B.
As; which
C.
It; as
D.
Which; which
【简答题】A．It is the best city he's ever visited. B．It was worse than he had expected. C．It is difficult to get around in the city. D．The hotel service is terrible in the city.
【单选题】当叶轮出口直径相同，转速相同，且泵的流量大于零时( )。
A.
后弯式叶轮的叶道阻力损失最小
B.
前弯叶轮的叶道阻力损失最小
C.
径向式叶轮的叶道阻力损失最小
D.
前三种情况都可能
【单选题】____ , he performed the task with success. A). It was expected B). Which was expected C). As was expected D). That was expected
A.
1
B.
2
C.
3
D.
4
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