酊剂是
A．不挥发的药物溶于酒精
B．挥发性的药物溶于酒精
C．药物溶于水中
D．油中水剂
E．粉剂加在凡士林中
参考答案：A
Humorous and friendly, our English teacher always makes his lessons lovely, so all the students _____ him. [ ]
A. live up to
B. look up to
C. add up to
D. stand up to
有如下程序段： Dim I As Integer I=Int(-3.25) 执行后，I的返回值是
A) -3 B) -4 C) 3 D) 3.25
