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【判断题】
改善异步电动机的启动特性,主要指降低启动时的功率因数,增加启动转矩。()A.
正确
B.
错误
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【简答题】完形填空 Bill, a thir-year-old boy, thought he had grown up to be a man. But his parents told him, “You won’t be a real man until you begin to(36)________ helping others. ” One morning, his parents ga...
【简答题】阅读下面短文,将短文中画线部分的句子翻译成中文。 1.When I was growing up, I was embarrassed( 尴尬的 ) to be seen with my father. He was very shot, what’s more, something was wrong with his foot. When we walked together, people ...
【简答题】探索两个相交的平面的公共部分 (1)如图一,两个不重合的平面有公共点P,那么这两个平面的公共部分 (A、是一条直线;B、是一条线段;C、只有点P),且点P (A、不在这条直线上;B、在这条直线上;C、在这条线段上)。 (2)如图二,借助四棱锥S-ABCD探索两个相交的平面的公共部分。 面SAB与面SAD的公共部分是 (A、线段SA;B、直线SA) 面SAB与面SCD的公共部分是 (A、一条过点S的...
【简答题】One day, Peter had a fight with one of his classmates. Then he went to his grandfather and told him his story 1 . “ He is really bad. ” the boy said, “ and I 2 him. ” The grandfather said,“ 3 me tell ...
【简答题】When I was small, I was very shy. I (81) ________ went out to play with other children. One day, my cousin asked me to play soccer with him. But I was (82) ________(worry) that the ball would hit(打) m...
【简答题】完形填空。 One day, a boy had a fight (打架) with one of his classmates. Then he went to his grandfather and told him his story 1 . 'He is really bad' the boy said, 'and I hate him.' The grandfather said, 'L...
【简答题】非语言沟通包括哪些要素?
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