将0.1mol·L-1的HAc与0.1mol·L-1的NaAc混合溶液中加水稀释至原

已知全集U={非零整数}，集合A={x||x+2|＞4，x∈U}，则∁_UA=（　　）

A．{-6，-5，-4，-3，-2，-1，0，1，2}

B．{-6，-5，-4，-3，-2，-1，1，2}

C．{-5，-4，-3，-2，0，-1，1}

D．{-5，-4，-3，-2，-1，1}

短文改错。

Christine was just a girl in one of my classes.I never knew much about

her except for that she was strange.She didn't talk  many.Her hair was black

and purple, and she worn black sports shoes and a black sweater, although in the

 summer.She was, in fact, rather attractively, and she never seemed care what

the rest of us thought about her. Like the rest of my classmate, I didn't really

want to get closed to her.It was only when we did their chemistry project

together that  I begin  to  understand why Christine dressed the way  she  did.

_____________________________________________________________

属于肿瘤的非侵入性检查方法是（）

A.内镜检查

B.脱落细胞学检查

C.超声显像

D.甲胎蛋白定量测定

E.选择性动脉造影

组织为了实现其目标而有计划、有组织、多层次、多渠道地组织其成员从事学习和训练，从而不断提高成员的知识和技能，改善成员的工作态度，激发成员创新意识的管理活动称为( )活动。

A．人员分配
B．人员管理
C．人力资源的开发和培训
D．人员建设

走道内T型滑轨吊挂POP下缘离地（）cm。

A．180

B．200

C．240