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【单选题】
In a department store project, numbers 1 through 10 were assigned to the 10 stores considered in the study. Suppose store number 9 referred to Sears and store number 6 referred to Neiman Marcus. Using this information, which of the following statements is true?A.
Sears is in some way superior or inferior to Neiman Marcus.
B.
It is meaningful to state that the number of the average store is 5.5.
C.
Both A and B are true.
D.
None of the above statements are true.
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【单选题】物空间并非物点 所在空间 , 像空间并非像点所在的空间. 在如图所示的单球面折射系统中,指出下列正确的是( ) .
A.
虚物S ，物空间折射率为1.5 ，像空间折射率为1.33
B.
实物S ,物空间折射率为1.5 ,像空间折射率为1.33
C.
虚物S ，物空间折射率为1.33 ，像空间折射率为1.5
D.
实物S ，物空间折射率为1.33 ，像空间折射率为1.5
【简答题】What effect has been achieved by the variation of the stress?
【简答题】如何确定QTL的存在?QTL与数量性状基因有何区别?
【单选题】What news has just been received?
A.
A stalled truck has been removed.
B.
There is going to be weak fog.
C.
Construction work is beginning in an area.
D.
A route is now open for drivers.
【简答题】如何确定QTL的存在?QTL与数量性状基因有何区别。
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