【判断题】【消耗次数：1】
混凝土在三向压力作用下的强度可以提高
①
正确
②
错误
参考答案：
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相关题目
【单选题】
关于双向或三向应力作用下混凝土的强度，下列说法正确的是（）。
①
横向受拉，纵向受压，可提高抗压强度；
②
横向受压，纵向受拉，可提高抗压强度
③
三向受拉能提高抗拉强度
④
三向受压能提高抗压强度
【单选题】
在轴向压力和剪力的共同作用下，混凝土的抗剪强度：（）
①
随压应力的增大而增大
②
随压应力的增大而减小
③
与压应力无关
④
随压应力的增大而增大，超过一定值后，反而会减小
随机题目
【单选题】
The city ______ its birth-rate by almost 60% in the past 20 years.
①
cuts
②
has been cut
③
cut
④
has cut
【单选题】
There are many ____ between the young and the old about their dreams.
①
difficult
②
differences
③
different
④
difficulties
【单选题】
Now that we’ve ____, can we come to a decision?
①
thought over
②
thought of
③
thought through
④
thought about
【单选题】
This year’s total output value of industry and agriculture will increase ____ 5 percent over last year.
①
to
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of
③
with
④
by
【单选题】
They are working hard to____ what they have lost.
①
make out for
②
keep up with
③
catch up with
④
make up for
【单选题】
How can he ______ if he is not ______ ?
①
listen; hearing
②
hear; listening
③
be listening; heard
④
be hearing; listened to
【单选题】
This ATM has been out of service for a few days. It should ____ last week.
①
be fixed
②
have fixed
③
fix
④
have been fixed
【单选题】
“Uncle Li used to live in the town, ____ he?”
①
weren’t
②
didn’t
③
wouldn’t
④
hadn’t