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【单选题】
某压力管道强度试验时,水压升至试验压力后10min内压力降低了0.01MPa,且管道附件等无损坏漏水现象,表明( )。
A.
试压试验合格
B.
试压试验不合格
C.
严密性试验合格
D.
严密性试验不合格
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参考答案：
举一反三
【判断题】斜楔夹紧机构的楔角α 越小，则增力比越大,自锁性能越好。（ ）
A.
正确
B.
错误
查看完整题目与答案
【单选题】表示金属材料屈服点的符号是:
A.
σe
B.
σ S
C.
σ b
查看完整题目与答案
【单选题】Why are RDAs regularly updated?
A.
New discoveries in the science of nutrition are constantly being made.
B.
Americans' diets are constantly changing.
C.
As people age, their nutritional needs change.
D.
Very little is currently known about nutrition.
查看完整题目与答案
【单选题】表示金属材料屈服点的符号是( )。
A.
σe
B.
σS 或σY
C.
σb
D.
σ-1
查看完整题目与答案
【单选题】表示金属材料屈服点的符号是( )。
A.
σe
B.
σs
C.
σb
D.
σ-1
查看完整题目与答案
【单选题】表示金属材料屈服点的符号是
A.
σb
B.
σe
C.
σs
D.
σ-1
查看完整题目与答案
【单选题】Answer the questions about the words and expressions. If someone nags someone else, are they (a) encouraging them, or (b) criticizing them constantl
A.
T hey are  encouraging them constantly.
B.
They are criticizing them constantly.
查看完整题目与答案
【单选题】It rained hard for several days. _____, a flood occurred in South China this summer. [     ]
A.
Constantly
B.
Firmly
C.
Consequently
D.
Deliberately
查看完整题目与答案
【单选题】表示金属材料屈服点的符号是( )
A.
σ e
B.
σ S
C.
σ b
D.
σ p
查看完整题目与答案
【单选题】A turbocharged diesel engine will have an intake manifold pressure____________.
A.
constantly decreasing as engine load increase
B.
constantly increasing as the amount of supercharging increases
C.
approximately equal to exhaust manifold pressure at all times
D.
approximately equal to atmospheric pressure at all times
查看完整题目与答案
相关题目：
【判断题】斜楔夹紧机构的楔角α 越小，则增力比越大,自锁性能越好。（ ）
A.
正确
B.
错误
查看完整题目与答案
【单选题】表示金属材料屈服点的符号是:
A.
σe
B.
σ S
C.
σ b
查看完整题目与答案
【单选题】Why are RDAs regularly updated?
A.
New discoveries in the science of nutrition are constantly being made.
B.
Americans' diets are constantly changing.
C.
As people age, their nutritional needs change.
D.
Very little is currently known about nutrition.
查看完整题目与答案
【单选题】表示金属材料屈服点的符号是( )。
A.
σe
B.
σS 或σY
C.
σb
D.
σ-1
查看完整题目与答案
【单选题】表示金属材料屈服点的符号是( )。
A.
σe
B.
σs
C.
σb
D.
σ-1
查看完整题目与答案
【单选题】表示金属材料屈服点的符号是
A.
σb
B.
σe
C.
σs
D.
σ-1
查看完整题目与答案
【单选题】Answer the questions about the words and expressions. If someone nags someone else, are they (a) encouraging them, or (b) criticizing them constantl
A.
T hey are  encouraging them constantly.
B.
They are criticizing them constantly.
查看完整题目与答案
【单选题】It rained hard for several days. _____, a flood occurred in South China this summer. [     ]
A.
Constantly
B.
Firmly
C.
Consequently
D.
Deliberately
查看完整题目与答案
【单选题】表示金属材料屈服点的符号是( )
A.
σ e
B.
σ S
C.
σ b
D.
σ p
查看完整题目与答案
【单选题】A turbocharged diesel engine will have an intake manifold pressure____________.
A.
constantly decreasing as engine load increase
B.
constantly increasing as the amount of supercharging increases
C.
approximately equal to exhaust manifold pressure at all times
D.
approximately equal to atmospheric pressure at all times
查看完整题目与答案
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