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【单选题】
在下列情况下,Ras的哪种形式的突变会引发细胞癌变( )
A.
Ras不能水解GTP
B.
Ras不能与GTP结合
C.
Ras不能与Grb2或者Sos结合
D.
Ras不能与Raf结合
E.
Ras不能与MEK结合
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举一反三
【单选题】Which of the listed conditions can be considered as the single greatest cause of accidents?
A.
Speed
B.
Excessive knowledge or skill
C.
Human error
D.
Excitement
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【简答题】Which of the following-is NOT mentioned as a cause of the boating accidents?
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【单选题】In Heinrich's causal chain of accidents, heredity and ( ) are regarded as the root causes of accidents.
A.
Machine
B.
Social environment
C.
management
D.
Education
查看完整题目与答案
【单选题】在各种普通V带中，（）型V带传递功率最小
A.
Y
B.
A
C.
O
D.
E
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【单选题】Which of the following is NOT mentioned as a cause of the boating accidents.
A.
Strong winds.
B.
Bad weather conditions.
C.
Blockage of waterways.
D.
Lack of safety measures.
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【判断题】汽车空调暖风系统可以减少空气中的水分,达到除湿的目的。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Have there always been similar types of hazards and accidents? Did the number of accidents increase with the Industrial Revolution? Why? Are the types of accidents increasing or decreasing? How have t...
查看完整题目与答案
【判断题】The first type of hazard sources determines the frequency of accidents.
A.
正确
B.
错误
查看完整题目与答案
【判断题】在Y、Z、A、B、C、D、E七种普通V带型号中，Y型的截面尺寸最大，E型的截面尺寸最小。( )
A.
正确
B.
错误
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【判断题】在Y、Z、A、B、C、D、E七种普通V带型号中,Y型的截面积最大,E型的截面积最小。
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】Which of the listed conditions can be considered as the single greatest cause of accidents?
A.
Speed
B.
Excessive knowledge or skill
C.
Human error
D.
Excitement
查看完整题目与答案
【简答题】Which of the following-is NOT mentioned as a cause of the boating accidents?
查看完整题目与答案
【单选题】In Heinrich's causal chain of accidents, heredity and ( ) are regarded as the root causes of accidents.
A.
Machine
B.
Social environment
C.
management
D.
Education
查看完整题目与答案
【单选题】在各种普通V带中，（）型V带传递功率最小
A.
Y
B.
A
C.
O
D.
E
查看完整题目与答案
【单选题】Which of the following is NOT mentioned as a cause of the boating accidents.
A.
Strong winds.
B.
Bad weather conditions.
C.
Blockage of waterways.
D.
Lack of safety measures.
查看完整题目与答案
【判断题】汽车空调暖风系统可以减少空气中的水分,达到除湿的目的。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Have there always been similar types of hazards and accidents? Did the number of accidents increase with the Industrial Revolution? Why? Are the types of accidents increasing or decreasing? How have t...
查看完整题目与答案
【判断题】The first type of hazard sources determines the frequency of accidents.
A.
正确
B.
错误
查看完整题目与答案
【判断题】在Y、Z、A、B、C、D、E七种普通V带型号中，Y型的截面尺寸最大，E型的截面尺寸最小。( )
A.
正确
B.
错误
查看完整题目与答案
【判断题】在Y、Z、A、B、C、D、E七种普通V带型号中,Y型的截面积最大,E型的截面积最小。
A.
正确
B.
错误
查看完整题目与答案