某患者进行血液分析结果为：血红蛋白72g/L，红细胞3.85×1012/L，红细胞比

— _____ I hand in my homework now, Mr Zhao?    

— No, you _____. You _____ hand it in tomorrow. [ ]

A. Shall; may not; have to

B. Can; mustn't; need

C. Should; can't; may

D. Must; needn't; can

EPA和DHA不仅可以降低HDL、升高LDL，还有抗癌作用。( )

某儿童8岁，爱探究，好攻击，喜欢表现自我，这是人生发展的()

A．被动发展阶段

B．主动发展阶段

C．自主发展阶段

D．巩固发展阶段

E．晚年发展阶段

The physician prescribes several drugs for a client with hemorrhagic stroke. Which drug order should the nurse question

A．Heparin sodium (Hep-Lock).

B．Dexamethasone (Deeadron).

C．Methyldopa (Aldomet).

D．Phenytoin (Dilantin).

压滤机拉板位移距离一般为（）mm左右。

A、300

B、500

C、800

D、1000