胃癌发生有关的病因（）。 A.幽门螺杆菌 B.乙型肝炎病毒 C.EB病毒与 D.单纯

The nurse is providing care for an immobilized client. For this client, the most appropriate and most effective nursing intervention would be （）.

A．getting the client out of bed and into a chair for 30 minutes, twice daily.

B．avoiding repositioning the client if he's comfortable.

C．repositioning the client on alternate sides at least every 2 hours.

D．positioning the client with the greatest pressure at the bony prominence.

下列哪些项是重度胎盘早剥的临床表现（）。

A. * * 出血量少，出现休克

B.剧烈腹痛后 * * 流血

C.胎位、胎心清晰

D.子宫呈板状或宫壁松弛不良

E.常合并妊娠高血压综合征或有外伤病史

No repairs can be done without the harbor master’s（）.

A.approval

B.authorization

C.consideration

D.discussion

(由单选和多选组成)

从以上组织结构形式中可以看出，该设计院变革后的组织结构形式属于( )。

A．行政层级式结构

B．职能制结构

C．矩阵式结构

D．事业部制结构

坡面防护包括哪些？