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【多选题】
在总投资额为2000万元的使用国有资金的一个建设项目中,必须通过招标签订合同的有( )。
A.
单项合同估算价为1000万元的施工项目
B.
单项合同估算价为170万元的材料采购项目
C.
单项合同估算价为30万元的设计项目
D.
单项合同估算价为20万元的勘察项目
E.
单项合同估算价为20万元的监理项目
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【单选题】I (would rather) you (don't) (make any comment) (on) this problem.
A.
would rather
B.
don't
C.
make any comment
D.
on
【单选题】. _____ to Beijing, I would visit the Forbidden City where the emperors once lived.
A.
If should I get
B.
If I would get
C.
Should I get
D.
If I get
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【单选题】What is the correct way to change this question into an indirect question? "Where should I go shopping?"
A.
Can you tell me where I should go shopping?
B.
Do you tell me where I should go shopping?
C.
How can I go shopping?
D.
Can you answer me where can I go shopping?
【单选题】听力原文:Where should I put these boxes? (A) There should be three of them. (B) You can set them in the corner. (C) No, but I can put them in a bag for you. (37)
A.
B.
【简答题】一台三相交流电机接于频率为 50 Hz 的电网运转,每相感应电势的有效值 E=350V ,定子绕组的每相串联匝数 N=312 匝,绕组系数 K w =0.96 ,求每极磁通量 Φ(保留两位有效数字) 。
【单选题】听力原文:W:You must enjoy danger,I mean,you wouldn't be a fireman if you didn't,would you? M:I don't know about that.I had a very frightening experience quite recently. Q:What is the man? (17)
A.
He is a safeguard.
B.
He is a fireman.
C.
He is a policeman.
D.
He is a racing-driver.
【单选题】同一感受器内,由于刺激物对感受器的持续作用而使感受性发生变化的现象是( )。
A.
感觉适应
B.
感觉对比
C.
同时对比
D.
继时对比
【单选题】一台三相感应电机接于频率为 Hz的电网,运行转速为735 ,此时转差率为 ,转子电动势的频率为 ,为 运行状态 ( )。
A.
0.02、1Hz、电动机
B.
0.02、50Hz、电动机
C.
-0.02、1Hz、发电机
D.
-0.02、50Hz、发电机
【简答题】蓄电池容量的影响因素有哪些?
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