属于生物碱类的药物有（）
A.硫酸阿托品
B.氯贝丁酯
C.盐酸吗啡
D.硝酸士的宁
E.苯佐卡因
参考答案：A, C, D
— Our holiday cost a lot of money.
— Did it? Well, that doesn't matter ________ you enjoyed yourselves.[ ]
A. unless
B. as far as
C. as long as
D. until
电子对抗按电子设备的类型，分为（）。
A.雷达对抗
B.无线电通信对抗
C.光电对抗
D.水声对抗
