香料烟的身份划分为（）
A、厚、中等、薄
B、中等、薄、稍厚
C、厚、中等、稍薄、薄
D、薄、稍薄、中等
参考答案：A
What at 7 o’clock yesterday evening?[ ]
A. have you done
B. were you doing
C. had you done
D. could you do
老年患者宜选用的抗菌药物为（）
A.阿莫西林
B.妥布霉素
C.依替米星
D.万古霉素
E.去甲万古霉素
