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【单选题】

榫卯结构是指在两个木构件上所采用的一种凹凸结合的连接方式。凸出部分叫( )。

A.
榫头
B.
榫槽
举报
参考答案:
参考解析:
.
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【单选题】Questions 62 to 66 are based on the following passage. If a mother pushes her small son in a swing (秋千), giving only a light force each time he returns, ually he will be swingirg.quite high. The ...

A.
the speed of a motor in revolutions
B.
the frequency at which a motor vibrates
C.
the amplitude of an engine that oscillates
D.
the changes in a dial within a ear engine

【多选题】木构件的含水率应符合()

A.
原木或方木结构应不大于25%
B.
木构件含水率不应大于90%
C.
木构件含水率不应大于80%
D.
板材结构及受拉构件的连接板不大于18%
E.
通风条件较差的木构件不应大于20%
相关题目:
【单选题】Questions 62 to 66 are based on the following passage. If a mother pushes her small son in a swing (秋千), giving only a light force each time he returns, ually he will be swingirg.quite high. The ...
A.
the speed of a motor in revolutions
B.
the frequency at which a motor vibrates
C.
the amplitude of an engine that oscillates
D.
the changes in a dial within a ear engine
【多选题】木构件的含水率应符合()
A.
原木或方木结构应不大于25%
B.
木构件含水率不应大于90%
C.
木构件含水率不应大于80%
D.
板材结构及受拉构件的连接板不大于18%
E.
通风条件较差的木构件不应大于20%