下列可以表明建设工程投资、进度、质量三大目标之间存在统一关系的是( )。

A．降低投资就需考虑降低功能和质量要求

B．提早发挥的投资效益超过因加快进度所增加的投资额

C．提高功能和质量增加的投资从全寿命费用分析的角度是节约投资的

D．工程实施过程中发现问题及时进行返工

E．实施过程中严格质量控制，可以减少返工费用和维修费用

The physician inserts a chest tube into a client to treat a pneumothorax. The tube is connected to water-seal drainage. The nurse can prevent chest tube air leaks by （）.

A．keeping the chest drainage system below the level of the chest.

B．keeping the head of the bed slightly elevated.

C．checking and taping all connections.

D．checking patency of the chest tube.