What is the value of $\mid x\mid$ ?

(1)$x = -\mid x \mid$

(2)${x}^{2}$ = 4

• 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.

• JamJam好吃

看清楚，是求x的绝对值，不是求x的值。

（1）只能得出x<0，不充分

（2）开方后，|x|=2，充分

选择B

2019-02-13 12:52:30