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【单选题】
在下列运算符中,运算时结合方向为自右向左的是:
A.
%
B.
>
C.
=
D.
,
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【简答题】Fill in the blanks with the proper form of words given in brackets. The difficult work (courage) Alan and he left school. The (punish) was too harsh for him. They decided to (decorate) the room with m...
【判断题】抗拉强度是金属材料的五项基本性能之一。
A.
正确
B.
错误
【单选题】下列除哪项外均为中药品质变异现象( )。
A.
破碎
B.
变色
C.
虫蛀
D.
泛油
【单选题】在以太网里,是根据数据帧里的哪个字段来决定转发数据的去向。
A.
前同步信号
B.
目地MAC地址
C.
源MAC地址
D.
数据类型
【单选题】强度是金属材料的( )。
A.
力学性能
B.
物理性能
C.
化学性能
D.
材料性能
【单选题】Half of the students done most of the work. The rest of the work rather difficult. [     ]
A.
have ; is
B.
has ; are
C.
have ; are
D.
has ; is
【单选题】_____ it was finished in time.
A.
As the work was difficult
B.
Difficult as the work was
C.
Difficult as was the work
D.
As was the work difficult
【单选题】下列除哪项外均为中药品质变异现象( )。
A.
破碎
B.
变色
C.
虫蛀
D.
泛油
E.
发霉
【判断题】强度是金属材料在外力作用下抵抗变形和破坏的一种能力,金属材料的强度越高,表示所能承受的外力越大。
A.
正确
B.
错误
【单选题】果汁样品的准确称量采用_____
A.
必须用分析天平
B.
必须用普通电子天平
C.
都可以,但是普通电子天平足以满足需求
D.
不确定
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