【单选题】【消耗次数：1】
混凝土中外加剂的掺量一般不大于水泥质量的（ ）。
①
4%
②
5%
③
6%
④
7%
参考答案：
复制
纠错
相关题目
【单选题】
关于混凝土外加剂的说法，错误的是（）
①
A.掺入适当减水剂能改善混凝土的耐久性
②
B.高温季节大体积混凝土施工应掺速凝剂
③
C.掺入引气剂可提高混凝土的抗渗性和抗冻性
④
D.早强剂可加速混凝土早起强度增长
随机题目
【单选题】
How do I get to the cinema?____________
①
Its very far.
②
Yes, there is a cinema near here.
③
Its well known.
④
Go down this street and turn left.
【单选题】
I doubt whether the Chinese Football Team can win the game this time.____________
①
That’s true.
②
It’s hard to say.
③
I like the team.
④
I don’t believe it.
【判断题】
判断线上的内容是否正确：She is under the impression that he isn’t a __genuine____ person for he wouldn’t tell her where and when he went to university.
①
正确
②
错误
【判断题】
判断线上的内容是否正确：When the post fell ___vacant___.Dennis Bass was appointed to fill it.
①
正确
②
错误
【单选题】
Although they had suffered heavy losses, they refused to ____ defeat.
①
concede
②
conserve
③
assert
④
conceal
【单选题】
He departed ____ to catch the train only to find his ticket was left in home.
①
in hurry
②
in haste
③
in a haste
④
with haste
【单选题】
After so many years, he still ____ the hope that his lost son would return one day.
①
clang to
②
clung to
③
inclined to
④
subjected to
【单选题】
Hi, Peter, how is everything with you?____________
①
Don’t mention it.
②
Pretty fast.
③
Thanks.
④
Hm, not too bad.
【单选题】
_______ is your girlfriend like?She is very kind and good-looking.
①
How
②
What
③
Which
④
Who