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【判断题】
超声波探伤中所指的衰减仅为材料对声波的吸收作用.( ) A. 对;错
A.
正确
B.
错误
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【单选题】机械手旋转气缸的动作是 ( )。
A.
手臂伸缩
B.
旋转
C.
手爪放松和夹紧
D.
提升和下降
【简答题】A lot of people like pets. I like them ,too. My favorite pet is a pig. I call him Pink Pig. The color of his skin is light pink. Pink is very clever and we keep him in the house. He is clean. He likes...
【单选题】way of acting or behavior toward other people
A.
urgency
B.
representative
C.
manner
D.
conduct
【单选题】Always acting in a strange way, Einstein must have ___appear to people around to be mad.
A.
shown
B.
imagined
C.
appeared
D.
thought
【简答题】phrase. acting in the same way at the same time
【判断题】T he water in a pond can either be “living” or “dead”. G arden designers all tried to join their pond with the river system outside to make a living pond.
A.
正确
B.
错误
【单选题】关于联合国说法正确的是
A.
合国大会通过的决议对所有会员国产生广泛的影响
B.
合国是世界最大的政治性组织
C.
合国是唯一有权采取行动维护国际和平与安全的机构
D.
有国际性问题必须由联合国决定
E.
F.
①②
G.
①②③
H.
①②③④
【单选题】为避开铸圈热中心,熔模应位于铸圈内径的中心,靠近铸圈顶端的
A.
1/5
B.
2/5
C.
3/5
D.
1/6
E.
1/7
【单选题】为避开铸圈热中心,熔模应位于铸圈内径的中心,靠近铸圈顶端的
A.
1/5
B.
2/5
C.
/5
D.
1/6
E.
/7
【单选题】听力原文: The University of California at Davis has government experiments with chemicals to get a bigger crop each year. But they haven't paid enough attention to necessary safety measures. In 1964 or 19...
A.
It was flying low.
B.
Its wheels were caught on a tree.
C.
Because the chemicals caught fire easily.
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