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【单选题】
【题号335】已知字符"0"的ASCII码为30H,字符"9"的ASCII码前加上一个奇校验位后的数据信息为 ( )。A.
B9H
B.
39H
C.
89H
D.
09H
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举一反三
【单选题】C++ is used with proper____design techniques.
A.
object-oriented
B.
object-based
C.
face to object
D.
face to target
【简答题】天南星半夏均属( )科药材,此科植物的花序为肉穗花序,因外常有一大型苞片,又称( )为其主要特征。
【单选题】An object is supported by a spring attached to the ceiling. What are the forces acting on the object?
A.
The mass of the object in the downward direction and the supporting force of the spring in the upward direction
B.
The mass of the object in the downward direction and the supporting force of the spring in the downward direction
C.
The weight of the object in the upward direction and the supporting force of the spring in the downward direction
D.
The weight of the object in the downward direction and the supporting force of the spring in the upward direction
E.
The weight of the object and the supporting force of the spring
【单选题】预制桩的混凝土浇筑应从桩顶至桩尖连续浇筑,采用叠层法生产时,上层桩和邻桩浇筑,必须在下层和邻桩的混凝土强度达到设计强度的( )以后才能进行。
A.
40%;
B.
30%;
C.
50%;
D.
70%。
【简答题】To prove this to yourself, look at an object out of one eye; then look at the same object out of your other eye. (Passage 1)
【多选题】预制桩施工正确说法是( )
A.
预制桩的钢筋骨架制作，钢筋骨架的主筋连接宜采用对焊。
B.
预制桩的钢筋骨架制作，主筋接头配置在同一截面内数量不超过50％。
C.
预制桩的钢筋骨架制作，同一根钢筋两个接头的距离应大于30d并不小于500mm。
D.
预制桩的混凝土浇筑，从桩顶到桩尖连续浇筑。
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