某缸火花塞间隙过小，会造成（）
A.次级高压过高
B.燃烧电压过高
C.次级高压过低
参考答案：C
It's easy to do the repair. ____ you need is a hammer and some nails.[ ]
A. Something
B. All
C. Both
D. Everything
药物较不稳定，遇湿热分解，可压性、流动性均不好，量较大适于
A．湿法制粒压片B．干法制粒压片C．结晶直接压片D．粉末直接压片E．空白颗粒压片
