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单选题
If x=1/4, then which of the following has the greatest value?
A
x
B
1/(2x)
C
x2
D
1-x
E
x3
参考答案
参考解析
解析：
如果x = 1/4，那么A为1/4；B为1/(2×4)=1/8；C为(1/4) ×(1/4)=1/16；D为1- (1/4)=3/4；E为(1/4) ×(1/4) ×(1/4) =1/64。所以D的值最大。
如果x = 1/4，那么A为1/4；B为1/(2×4)=1/8；C为(1/4) ×(1/4)=1/16；D为1- (1/4)=3/4；E为(1/4) ×(1/4) ×(1/4) =1/64。所以D的值最大。
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