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【单选题】
已知某些显色体系的桑德尔灵敏度S为0.022g/cm 2 ，Cu的相对原子质量为63.35，则吸光系数（L/g·cm）为（）A.
45.5
B.
55.5
C.
110
D.
11.0
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【简答题】A．If Phil is lucky, he might get a scholarship. B．There is no way in which Phil can win a scholarship. C．Phil is not going to chance his luck and try for a scholarship. D．Phil is not being given a cha...
【单选题】Which of the following might tell us that the youngest child was Phil's favorite?
A.
He was doing enough odd jobs.
B.
He was the one who tried to reach Phil.
C.
He was the one Phil worried about most.
D.
He was a high-school graduate.
【单选题】对十字头式柴油机的贯穿螺栓上紧时应______。
A.
顺时针方向逐个上紧
B.
从前向后成对依次上紧
C.
从中央向两端交替成对地进行上紧
D.
分两次从中央向两端交替成对地进行上紧
【单选题】In Andrew Grovels opinion, which is more important, marketing or technology?
A.
Marketing is more important than technology.
B.
Technology is more important than marketing.
C.
Marketing is as important as technology.
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