筒形制品，优先采用以下哪种顶出方式？（）
A.顶针顶出
B.推管顶出
C.推板顶出
D.手动取出
参考答案：C
He’s still not understood by his close friend although he has said sorry to him, _________?
A．hasn’t he
B．has he
C．isn’t he
D．is he
氨苄青霉素中的蛋白质是发生药疹的原因是属于
A．胃肠道损害B．胃肠道反应C．低血糖D．耳毒性E．并发或加重
