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【单选题】
在气相色谱中，色谱柱的使用上限温度取决于A.
样品中沸点最高组分的沸点
B.
样品中各组分沸点的平均值
C.
固定液的沸点
D.
固定液的最高使用温度
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皮皮学刷刷变学霸
举一反三
【简答题】培养竞争意识 ___________
【单选题】According to the passage, if one enjoys life, he /she is sure to prefer______.
A.
red to yellow
B.
blue to orange
C.
red to grey
D.
blue to yellow
【单选题】均匀磁场的磁感强度垂直于半径为r的圆面.今以该圆周为边线,作一半球面S,则通过S面的磁通量的大小为
A.
2 p r 2 B
B.
p r 2 B
C.
0
D.
无法确定的量
【单选题】均匀磁场的磁感强度 垂直于半径为r的圆面.今以该圆周为边线,作一半球面S,则通过S面的磁通量的大小为:
A.
2πr 2 B．
B.
πr 2 B．
C.
0．
D.
无法确定的量．
【单选题】Zero-coupon bonds issued in 2006 are due in 2016. If they were originally sold at 55 percent of face value, the implied yield to maturity at issuance is?
A.
1.062%
B.
6.16%
C.
8.31%
D.
cannot be determined, need more information
【判断题】The book value of zero-coupon bonds increases by the periodic amount of interest recognized.
A.
正确
B.
错误
【单选题】In the last sentence of the third passage, to which of the following does 'it' refer?
A.
Yellow 'hump'.
B.
Day.
C.
Sun.
D.
Hydrogen fuel.
【简答题】英语问答。 ( ) 1. What's your favourite clothes? A. I like to play ping-pong. ( ) 2. What's your favourite food? B. Yellow. ( ) 3. What's your favourite school wor...
【简答题】均匀磁场的磁感强度 垂直于半径为r的圆面.今以该圆周为边线,作一半球面S,则通过S面的磁通量的大小为A. 2 B πr 2 B. πr 2 B. C. 0. D. 无法确定的量.
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