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【单选题】
内无裂纹、未焊透、未熔合和条状夹渣的焊缝为（）。A.
I级焊缝
B.
II级焊缝
C.
III级焊缝
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举一反三
【单选题】组成谷胱甘肽的氨基酸
A.
谷氨酸、半胱氨酸和甘氨酸
B.
谷氨酸、胱氨酸和甘氨酸
C.
谷氨酸、同型半胱氨酸和甘氨酸
D.
谷氨酰胺、半胱氨酸和甘氨酸
E.
谷氨酰胺、胱氨酸和甘氨酸
【简答题】阅读理解。 As you move around your home, take a good look at the things you have. It is likely that your living room will have a television set and a video, and your kitchen a washing machine and a microwa...
【单选题】When Joe maximizes utility, he finds that his MRS of X for Y is greater than Px/Py. It is most likely that:
A.
Joe's preferences are incomplete.
B.
Joe's preferences are irrational.
C.
Joe is not consuming good X.
D.
Joe is not consuming good Y.
【多选题】The regression equation Y = 3 + 2X has been calculated from 6 pairs of values, with X ranging from 1 to 10. The correlation coefficient is 0.8. It is estimated that Y = 43 when X = 20. Which of the fo...
A.
The estimate is not reliable because X is outside the range of the data
B.
The estimate is not reliable because the correlation is low
C.
The estimate is reliable
D.
The estimate is not reliable because the sample is small
【简答题】阅读理解。 As you move around your home, take a good look at the things you have. It is likely that your living room will have a television set and a video, and your kitchen a washing machine and a microwa...
【单选题】在回弹法测强中，由测区回弹修正后的( )值和( )值通过测强曲线或强度换算表得到的测区现龄期混凝土强度值称为测区混凝土强度换算值。
A.
最大，最小
B.
平均，最小
C.
最大，碳化深度
D.
平均，碳化深度
【单选题】组成谷胱甘肽的氨基酸（）。
A.
谷氨酸、半胱氨酸和甘氨酸
B.
谷氨酸、胱氨酸和甘氨酸
C.
谷氨酸、同型半胱氨酸和甘氨酸
D.
谷氨酰胺、半胱氨酸和甘氨酸
E.
谷氨酸胺、胱氨酸和甘氨酸
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