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【单选题】
下列关于预应力构件的说法中，正确的是（ ）A.
为使放混凝土的预压应力相同，后的 s con 应高于先
B.
通过预拉钢筋对混凝土施加预压应力，不能提高轴拉构件的承载力
C.
“一般要求不出现裂缝”的预应力混凝土受弯构件，在荷载效应标准组合下不允许出现拉应力
D.
控制应力允许值［ s con ］以预应力筋的强度设计值给出
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举一反三
【简答题】It's stil cold but it was colder yesterday. It is________________________________________.
【单选题】They did excellent work; ______ they deserve to be praised.
A.
therefore
B.
but
C.
however
D.
still
【简答题】公证的功能有哪些?
【单选题】Upon arrival in the city they were shocked to learn that all surviving hospitals were still being______by crowds of casualties needing treatment.
A.
enclosed
B.
embarrassed
C.
besieged
D.
penetrated
【单选题】李某,男性,13岁,自幼父母离异,自6岁起患者出现说谎、逃学、偷钱、外走现象,经常损害学校公共财物,不听老师管教。该患者行为属于
A.
儿童多动症伴品行问题
B.
精神发育迟滞伴行为问题
C.
儿童多动症伴品行障碍
D.
儿童品行障碍
E.
儿童孤独症伴行为问题
【单选题】As a chairman for nearly ten years, Professor Smith has never ( ) to anything dishonest.
A.
beard
B.
attached
C.
granted
D.
kept
【简答题】For nearly 100 years, women have had the right to vote in America.
【单选题】Madame Traiviey has lived nearly 115 years.
A.
She died when she was nearly 115.
B.
Madame Traiviey has many more years.
C.
She was very old.
D.
She is very old.
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