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【单选题】
《特种设备质量监督与安全监察规定》所规定的“常规检查”不是指（）。A.
；
B.
；
C.
月检；
D.
日检
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反馈参考答案：
举一反三
【单选题】What's this passage mainly about?
A.
The internal structure shows how ancient trees grew.
B.
The CO2 lever exerts impact on the leaves of ancient tress.
C.
Analysis of ancient fossils paint picture of the Earth's earliest trees.
D.
The ancient trees have no leaves and few branches.
【单选题】What's the passage mainly about?
A.
The internal structure shows how ancient trees grew.
B.
The CO2 lever exerts impact on the leaves of ancient tress.
C.
Analysis of ancient fossils paint picture of the Earth's earliest trees.
D.
The ancient trees have no leaves and few branches.
【简答题】下列存在搭便车问题的物品是（ ）。
【多选题】What's the common point between the original system and the primary system?【图片】
A.
External loads
B.
Displacement at each point and each cross-section
C.
Internal forces distribution
D.
Reaction forces
【单选题】What's wrong with the account of calm breathing?
A.
The external intercostal muscles contract during inhalation
B.
the internal intercostal muscles contract during exhalation
C.
the thorax returns naturally during exhalation
D.
inhalation is an active process
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