已知\(x\)是实数，且\((x-2)(x-3) \sqrt {1-x}=0\)，则\(x^{2}+x+1\)的值为\((\)　　\()\)

A．\(13\)

B．\(7\)

C．\(3\)

D．\(13\)或\(7\)或\(3\)

【考点】整式,二次根式

【分析】请登陆后查看

【解答】请登陆后查看