术中的无菌原则，下列哪些项是正确的A．术者前臂一旦触及有菌物后，应即更换无菌手套 B

连词成句。

1. is, it, dollars and cents. thirteen, twenty-five (.)

    ________________________________________

2. are, eating, the, our ducks, picnic (.)

    ________________________________________

3. going, is, it, to, tomorrow. in, snow, Harbin (.)

    ________________________________________

4. I, going, am, have, to, birthday, a, party (?)

    ________________________________________

5. is. She, get, the, trying, bus, off, to (.)

    ________________________________________

Each species has certain______features.

A．distinguish

B．distinguished

C．distinct

D．distinctive

0.45的倒数是______．

柴胡疏肝散适合治疗痞满的证型是（）

A.饮食内停证

B.痰湿中阻证

C.肝胃不和证

D.脾胃虚弱证

E.胃阴不足证

简化产品组合策略。