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判断char型变量c是否为小写字母的正确表达式是A.'a'<=c<='2'B.(c>=A) &&(c<=z)C.('a'>=c

判断char型变量c是否为小写字母的正确表达式是

A.'a'<=c<='2'

B.(c>=A) &&(c<=z)

C.('a'>=c) ||('z'<=c)

D.(c>='a')&&(c<='z')


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