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【单选题】
正截面承载力计算基本假定之一为平截面假定,其主要作用是:
A.
确定相对受压区高度x
B.
确定受压边混凝土应变达到极限时,受压区合力点的位置
C.
确定界限破坏时相对受压区高度系数
D.
没有什么作用
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参考答案:
举一反三
【判断题】设a=3,b=4,c=5。则逻辑表达式:a+b>c&&b==c的值是0。
A.
正确
B.
错误
【单选题】Do you have any idea what has ______ him mad?
A.
made
B.
driven
C.
forced
D.
kept
【单选题】The little baby was left alone, with ______ to look after it.
A.
a. someone
B.
b. anyone
C.
c. not one
D.
d. no one
【简答题】I was not Pygmalion; I was Frankenstein.
【简答题】设a=3,b=4,c=5,则逻辑表达式 !(a>b)&&!c||1 的值为 。
【单选题】The little baby was left alone, with ______ to look after it
A.
no one
B.
not one
C.
someone
D.
anyone
【简答题】设a=3,b=4,c=5,则逻辑表达式a+b>c&&b==c的值是( )
【单选题】The little baby was left alone, with ______ to look after it.
A.
someone
B.
anyone
C.
not one
D.
no one
【简答题】设 a =3,b =4,c=5, 则逻辑表达式 !(a>b)&&!c||1 的值是: 。
【简答题】设a=4,b=3,c=5,则逻辑表达式!(a>b)&&!c||2的值为【 】。
参考解析:
知识点:
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