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【单选题】
变频器运行时过载的报警,电机不过热。此故障可能的原因是( )。(A)变频器过载不合理,电机过载 (B)电源三相不平衡,变频器过载整不合理 (C)电机过载,变频器过载整不合理 (D)电网电压过高,电源三相不平衡。A.
B.
C.
D.
D
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【简答题】（二） 【背景资料】 某城市轨道交通工程项目，在施工过程中，项目经理部对施工阶段的质量控制措施摘录如下： (1)单位工程、分部工程扣分项工程开工前．施工负责人向分包方全体人员进行书面技术交底。 (2)项目经理对监理工程师提出的设计变更要求在执行前向执行人员进行书面交底。 (3)项目开工前编制的测量控制方案经监理工程师批准后方可实施。 (4)项目技术负责人对承包方自行采购的物资进行验证。 (5)对发...
【简答题】The woman put on a big hat, hoping that no one could ____her.
【单选题】It could be inferred from the text that members of the Red Hat Society are ______.
A.
interested in raising money for social work
B.
programmers who can plan well for their future
C.
believers in equality between men and women
D.
good at cooking big meals and taking care of others
【单选题】No one could tell how the magician was able to produce a rabbit from his hat until he ______his tricks.
A.
strayed away from
B.
threw light on
C.
gave birth to
D.
fell back on
【单选题】I don't like the color of this hat. _____ you show me another one, please? [ ]
A.
Could
B.
Need
C.
Must
D.
Should
【单选题】_______ second hat doesn't fit me, either. Could I look at _______ third one?
A.
A; a
B.
The; the
C.
A; the
D.
The; a
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