Data Sufficiency
试题详情
题目：
Is the integer n odd?
(1)n is divisible by3.
(2)2n is divisible by twice as many positive integers as n.
(1)n is divisible by3.
(2)2n is divisible by twice as many positive integers as n.
选项:
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 statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、 EACH statement ALONE is sufficient.
E、 Statements (1) and (2) TOGETHER are NOT sufficient.
答案:
B
提问：
（条件2里的那个）2n is divisible by twice as many positive integers as n.
老师这句话我就没看懂。。。
我理解的是2n能被跟n一样多的正整数的两倍除尽，然后就是2n/2n=1 是奇数
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