GWD29-Q32没有正式答案

nicboy

    

Q32:

    

In the decimal
representation of x, where 0 < x < 1, is the tenths digit
of x nonzero?

    

(1)
              16x is an integer.

    

(2)
              8x is an integer.

    

              

    

A. Statement (1) ALONE
is sufficient, but statement (2) alone is not sufficient.

    

B. Statement (2) ALONE
is sufficient, but statement (1) alone is not sufficient.

    

C. BOTH statements
TOGETHER are sufficient, but NEITHER statement ALONE is
sufficient.

    

D. EACH
statement ALONE is sufficient.

    

E. Statements (1)
and (2) TOGETHER are NOT sufficient.

如果 X=0。5，那么0。5*16=8， 0。5*8-4那么不是满足吗，反之则不满足，所以选E吗

proudking

题目的意思是 x是一个小数，问x 的十分位 是不是0

不知道你为什么减去4