微生物肥料具有生产较简单、使用方便、用量少、成本（），对人、畜、树木花草无污染等优点

何人提出癫与狂的不同

A．素体阳虚，阴寒凝滞，气血痹阻，心阳不振
B．心气不足，阴血亏耗，血行瘀滞
C．血行瘀滞，胸阳痹阻，心脉不畅
D．肝失疏泄，气机郁滞，心脉不和
E．阳气虚衰，胸阳不振，气机痹阻，血行瘀滞

免疫放射分析法的基本原理是（）

A.放射标记抗原与过量的特异抗体进行结合反应

B.放射标记抗原与限量的特异抗体进行结合反应

C.抗原与限量的特异抗体进行结合反应

D.抗原与过量的特异标记抗体进行结合反应

E.放射标记抗原和非标记抗原与限量的特异抗体进行竞争结合反应

句型转换.

1. If  I were you, I would wear a shirt and tie to the meeting. (对画线部分提问)   

                   would you wear to the meeting if you                 me?

2. Betty is very quiet and shy. She's always so nervous that she can't speak in public. (改为同义句)    

    Betty is very quiet and shy. She's always                   nervous ____   ___ speak in public.

3. My parents won't allow me to keep a pet dog at home. (改为同义句)  

    My parents won't let me ____          a pet dog at home.

4. He got up late so he couldn't catch the early bus. (改为简单句)  

    He got up                                  ________ _________ the early bus.

5. If  it is fine, we'll go for a picnic. (改为虚拟语气的同义句)

    If  it ________ fine, we                 go for a picnic.

为了对那些由于生理上的原因，可能需要纯氧的机上乘员进行急救护理，规定的氧气分配装置的最少数量是（）.

A.2个

B.3个

C.4个

阳明腑实之黑苔与肾水枯竭之黑苔如何鉴别？