题目内容

结果是？

A. 8
B. -9
C. -8
D. 9

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A. 18,20,25
B. Array([1]=>18 [2]=>20 [3]=>25)
C. Array([0]=>18 [1]=>20 [2]=>25)

A. number_format(6.15,0)
B. number_format(6,0,'','')
C. number_format(5.49,0)
D. number_format(5.99)

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B. a
C.
D. bcdef
E. a
F. cdef

A. Hello,what a nice day.
B. ”Hello,””what a nice day”
C. Hello