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【单选题】
在原材料一定的情况下,影响混凝土强度的决定性因素是 ( )
A.
水泥用量
B.
水灰比
C.
骨料的表面状况
D.
骨料强度
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参考答案：
举一反三
【单选题】指针式万用表测量电压电流时,为了读数精确,应尽量使指针指在刻度尺的( )之间。
A.
1/4~1/2
B.
1/3~2/3
C.
1/3~满刻度
D.
2/3~满刻度
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【简答题】What 2 methods can an alumni association use to keep you up-to-date?
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【单选题】According to the writer, most scientists who had helped in making the A-bomb considered that it should not be used against the Japanese because ______.
A.
it was such a dangerous weapon
B.
its use against the Japanese was unnecessary
C.
it was a very inhumane weapon
D.
the German war was finished
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【判断题】判断抽样一般适用于样本量较小的的情况。
A.
正确
B.
错误
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【简答题】Have you seen Jurassic Park? In this film, scientists use DNA kept for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter...
查看完整题目与答案
【简答题】To sum up , cruiser offer a wide range of ( )现代的 accommodations.
查看完整题目与答案
【判断题】Most scientists used to believe that time travel was possible.
A.
正确
B.
错误
查看完整题目与答案
【单选题】According to the article, what changes did the Commercial Revolution bring about?
A.
Methods of production
B.
Appearance of craft guilds
C.
Increased trade volume
D.
Growth of trade, banking and methods of production
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【判断题】使用指针式万用表检测电压、电流、电阻时，为使测量更准确，应使指针指在满刻度的2/3以上。
A.
正确
B.
错误
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【多选题】为测量数据准确，使用万用表时应（）。
A.
根据测量对象选择所需的档位
B.
指针式万用表应检查指针指向零位
C.
将万用表放平
D.
选择测量范围，大约数值在满刻度的2/3处
E.
注意表笔的正负极与直流电压的极性对应
F.
测量完毕，将转换开关旋至交流电压最高档
查看完整题目与答案
相关题目：
【单选题】指针式万用表测量电压电流时,为了读数精确,应尽量使指针指在刻度尺的( )之间。
A.
1/4~1/2
B.
1/3~2/3
C.
1/3~满刻度
D.
2/3~满刻度
查看完整题目与答案
【简答题】What 2 methods can an alumni association use to keep you up-to-date?
查看完整题目与答案
【单选题】According to the writer, most scientists who had helped in making the A-bomb considered that it should not be used against the Japanese because ______.
A.
it was such a dangerous weapon
B.
its use against the Japanese was unnecessary
C.
it was a very inhumane weapon
D.
the German war was finished
查看完整题目与答案
【判断题】判断抽样一般适用于样本量较小的的情况。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Have you seen Jurassic Park? In this film, scientists use DNA kept for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter...
查看完整题目与答案
【简答题】To sum up , cruiser offer a wide range of ( )现代的 accommodations.
查看完整题目与答案
【判断题】Most scientists used to believe that time travel was possible.
A.
正确
B.
错误
查看完整题目与答案
【单选题】According to the article, what changes did the Commercial Revolution bring about?
A.
Methods of production
B.
Appearance of craft guilds
C.
Increased trade volume
D.
Growth of trade, banking and methods of production
查看完整题目与答案
【判断题】使用指针式万用表检测电压、电流、电阻时，为使测量更准确，应使指针指在满刻度的2/3以上。
A.
正确
B.
错误
查看完整题目与答案
【多选题】为测量数据准确，使用万用表时应（）。
A.
根据测量对象选择所需的档位
B.
指针式万用表应检查指针指向零位
C.
将万用表放平
D.
选择测量范围，大约数值在满刻度的2/3处
E.
注意表笔的正负极与直流电压的极性对应
F.
测量完毕，将转换开关旋至交流电压最高档
查看完整题目与答案
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