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【单选题】
配置非预应力钢筋的先预应力混凝土轴心受拉构件，完成第二批预应力损失之后，在混凝土中建立的有效预压应力σ pcⅡ 为( )。A.
[(σ con -σ l )A p -σ l5 A s ]/A 0
B.
(σ con -σ l )A p /A 0
C.
(σ con -σ l -α E σ pcⅡ )/A 0
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皮皮学刷刷变学霸
举一反三
【单选题】We're happy to report that business is booming this year．
A.
risky
B.
successful
C.
failing
D.
open
【单选题】According to the first two paragraphs, we can learn that
A.
clean energy business is booming while the risks are totally overlooked.
B.
venture capitalists have wasted much money on 'hippy-dippy tree hungers'.
C.
clean energy business is surging and changes the venture capital market.
D.
the information-technology industry is correspondingly shrinking fast.
【单选题】In the UK's Poundland shops, which stock everything from cosmetics to dog biscuit, business is booming.
A.
Poundland shops stock everything.
B.
Everything from cosmetics to dog biscuit.
C.
Business is booming.
D.
Poundland shop is booming.
【单选题】Were happy to report that business is booming this year.
A.
failing
B.
open
C.
successful
D.
risky
【简答题】保险最大诚信原则中的弃权与禁止反言主要是约束（ ）的。
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