If x is a positive integer, what is the value of x ?

(1)x2 = ~$\sqrt{x}$~

(2)~$n \over x$~ =n and n≠ 0.

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

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

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

EACH statement ALONE is sufficient.

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

##### 考题讲解

（1）~$x^2=\sqrt{x}$~  ，由于x是正数（x不为0），所以，两边平方得~$x^4=x$~，解得x=1。

（2）~$\frac{n}{x}=n$~  并且n不为0，两边同时除以n得，~$\frac{1}{x}=1$~，解得x=1。