必须按照GMP组织生产是 A．药品生产企业市场准入条件之一 B．药品生产企业行为规则

T₁值是指90°脉冲后，纵向磁化矢量恢复到何种程度的时间（）

A.37％

B.63％

C.36％

D.73％

E.99％

A: Could you install this equipment for me B: ______

A．Come on, don't you see I'm busy now

B．Unless you can help me with my computer.

C．It's very heavy. It'll be OK if you can find another hand.

D．If I were you, I would do it myself.

合同关系正常消灭的原因是( )

A．合同不成立

B．合同无效

C．合同履行

D．合同解除

我国青光眼常见类型是

A．新生儿血管性青光眼
B．原发性开角型青光眼
C．原发性闭角型青光眼
D．恶性青光眼
E．先天性青光眼