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【单选题】
混凝土保护层的最小厚度主要根据环境类别、构件类型、混凝土强度等因素来综合确定,但一般情况下,构件中受力钢筋的保护层厚度不应小于( )
A.
20mm
B.
15mm
C.
40mm
D.
钢筋的直径
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【单选题】They have held three meetings this week _________.
A.
alone
B.
lonely
C.
ever
D.
just
【单选题】到2035年我国基本实现现代化,这比十七大提出的“三步走”基本实现现代化的战略提前了多少年
A.
5
B.
10
C.
15
D.
20
【单选题】The following are why meetings are held except _______.
A.
Different and unexpected ideas can be contributed.
B.
Meetings can lead to more imaginative and informed decisions.
C.
Decision can be made faster.
D.
Information is available to more people.
【单选题】适用于瓷器,但不适用于玻璃器皿的消毒方法是( )。
A.
蒸气消毒法
B.
煮沸消毒法
C.
干烤法
D.
紫外线消毒法
【单选题】It is reported that a series of meetings _____ held about the best way to market the new product.
A.
was
B.
were
C.
has
D.
have
【简答题】There are different 1)of media today. News and 2)are communicated to us in a number of different ways, using different media. It may be 3) media such as newspapers and magazines, or 4)media such as ra...
【单选题】普通显微镜主要包括机械部分和光学部分,以下不属于光学部分的是:
A.
目镜、物镜
B.
载物台
C.
遮光器
D.
反射镜
【简答题】听下面一段材料。回答第1-2题。 1. Why does Greener World develop educational programs for schools? A. To show children how the oceans are being polluted. B. To tell children why over-fishing can happen. C. To make ...
【多选题】Show programs are various, such as drama, magic, and in the stage with extravagant sets and scenery.
A.
music play
B.
singing
C.
dancing
D.
acrobatic
【单选题】到2035年我国基本实现现代化,这比十七大提 出的“三步走”基本实现现代化的战略提前了( )年。
A.
5年
B.
10年
C.
15年
D.
20年
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