当隔离开关电动操作机构中电动机过载时,靠()切断交流电源。 A.接触器 B.限位开关

题型:单项选择题

问题:

当隔离开关电动操作机构中电动机过载时,靠()切断交流电源。

A.接触器

B.限位开关

C.热继电器

D.电源空气开关

考点:变电检修工考试变电检修高级技师变电检修高级技师题库
题型:单项选择题

第二卷(满分40)

第一节:单词拼写

76.Even though the team’s best player was injured and they had to use a s___ player, they still won the match.

77.Peru has a_____ plants from desert grasses to vast areas of jungle.

78.More importantly, I am now a more a_____ learner.

79.That evening I fell happily into bed. It was such a _____(殊荣) to have spent a day with Tombe’s family.

80.Thanks for your letter, which took a ____ (两周)to arrive.

81.Claire thought it was ridiculous to be offered ____ (同情)by a robot.

82.Just accept them for who they are, and give them ____(鼓励)to live as rich and full a life as you do.

83.The few who cannot see the real person inside my body do not make me a_____, and I just ignore them.  

84.Every possible ____(手段)has been tried, but in vain.

85.LiMing was e_____ our monitor for his excellent leadership.

86.In China ,there is no r____ difference.

87.He has twenty head of _____(牛) on his farm.

88.N____ can you find such a beautiful place.

89.Three in ten students were for the new plan. That is to say, the m____ of the students were against it.

90.He caught the ball, and then it _____(滑动)through his fingers.

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今后患者最主要的随访措施是()。

A.大便隐血试验

B.胃肠钡餐造影

C.胃镜及随访

D.胃液分析

E.血清胃泌素测定

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在校正船舶磁罗经自差的过程中,若船舶航向于东北航向,测得自差为东自差,则两软体球(片)之间的距离应()。

A.靠近

B.拉远

C.保持不变

D.以上答案均不对

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