【多选题】验算梁端支承处砌体局部受压承载力时,根据A0/Al 的大小对上部荷载予以折减的原因中,哪些不正确( )。
D.
A0/Al 较大时易使梁端支承处砌体产生劈裂破坏
【单选题】Which of the following techniques is NOT mentioned in this article?
A.
Telling the meaning of an unfamiliar word directly.
B.
Bringing out the meaning of an unfamiliar word in different words.
C.
Explaining an unfamiliar word by examples.
D.
Comparing an unfamiliar word with common experience.
【单选题】验算梁端支承处砌体局部受压承载力时,根据 A 0 /A l 的大小对上部荷载予以折减的原因是( )
D.
A 0 /A l 较大时易使梁端支承处砌体产生劈裂破坏
【简答题】线衰减系数的SI单位是A. cm-1 B. s-B.1 C. /s D. m2/kg E. m-1