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【单选题】
电压互感器二次熔断器熔断时间应( )。
A.
(A)小于1s
B.
(B)小于0.5s
C.
(C)小于0.1s
D.
(D)小于保护动作时间。
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参考答案：
举一反三
【单选题】He did in class, so he failed in the final-term test.
A.
well
B.
poor
C.
good
D.
Poorly
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【简答题】Mrs. Thompson came to the 5 th grade class and noticed that Teddy was always alone. Also, he did badly in his studies．When she reviewed Teddy’s past records，she find he was a good child at first，but h...
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【简答题】用C语言实现:输入一串字符,统计其中空格的个数
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【单选题】三相交流电动机绕组末端连接成一点，始端引出，这种连接称为（）连接。
A.
三角形；
B.
圆形；
C.
星形；
D.
双层。
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【单选题】听力原文：We currently believe that the earths crust-the rocky part of the earth-is composed of several large, rigid plates. These plates are being created at some edges and being destroyed at others. They...
A.
Wilson developed a warning system for earthquakes.
B.
Wilson wrote an article that contradicted scientific law.
C.
Wilson first proposed the theory of plate tectonics.
D.
Wilson discovered sea floor spreading in the North Atlantic.
查看完整题目与答案
【单选题】He did in class, so he failed in the final-term test.
A.
well
B.
poor
C.
good
D.
poorly
查看完整题目与答案
【单选题】三相交流电动机绕组末端连接成一点,始端引出,这种连接称为 ( )连接
A.
三角形
B.
圆形
C.
星形
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【单选题】三相交流电动机绕组末端连接成一点，始端引出，这种连接称为（）
A.
120度机械角度
B.
120度
C.
120度任意角度
D.
120度电角度
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【简答题】So nervous did Tommy felt that he couldn’t speak in front of the whole class.
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【单选题】霉菌、酵母菌检验稀释时,根据对样品污染状况的估计,选择2~3个适宜稀释度的样品匀液,()无菌培养内。
A.
每个X稀释度分别吸取1mL样品匀液加入两个
B.
在进行10倍递增稀释时,每个稀释度分别吸取1mL样品匀液加入两个
C.
每个稀释度分别吸取1mL样品匀液加入一个
D.
在进行10倍递增稀释时,每个稀释度分别吸取1mL样品匀液加入一个
查看完整题目与答案
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【单选题】He did in class, so he failed in the final-term test.
A.
well
B.
poor
C.
good
D.
Poorly
查看完整题目与答案
【简答题】Mrs. Thompson came to the 5 th grade class and noticed that Teddy was always alone. Also, he did badly in his studies．When she reviewed Teddy’s past records，she find he was a good child at first，but h...
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【简答题】用C语言实现:输入一串字符,统计其中空格的个数
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【单选题】三相交流电动机绕组末端连接成一点，始端引出，这种连接称为（）连接。
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B.
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C.
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D.
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【单选题】听力原文：We currently believe that the earths crust-the rocky part of the earth-is composed of several large, rigid plates. These plates are being created at some edges and being destroyed at others. They...
A.
Wilson developed a warning system for earthquakes.
B.
Wilson wrote an article that contradicted scientific law.
C.
Wilson first proposed the theory of plate tectonics.
D.
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查看完整题目与答案
【单选题】He did in class, so he failed in the final-term test.
A.
well
B.
poor
C.
good
D.
poorly
查看完整题目与答案
【单选题】三相交流电动机绕组末端连接成一点,始端引出,这种连接称为 ( )连接
A.
三角形
B.
圆形
C.
星形
查看完整题目与答案
【单选题】三相交流电动机绕组末端连接成一点，始端引出，这种连接称为（）
A.
120度机械角度
B.
120度
C.
120度任意角度
D.
120度电角度
查看完整题目与答案
【简答题】So nervous did Tommy felt that he couldn’t speak in front of the whole class.
查看完整题目与答案
【单选题】霉菌、酵母菌检验稀释时,根据对样品污染状况的估计,选择2~3个适宜稀释度的样品匀液,()无菌培养内。
A.
每个X稀释度分别吸取1mL样品匀液加入两个
B.
在进行10倍递增稀释时,每个稀释度分别吸取1mL样品匀液加入两个
C.
每个稀释度分别吸取1mL样品匀液加入一个
D.
在进行10倍递增稀释时,每个稀释度分别吸取1mL样品匀液加入一个
查看完整题目与答案
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