装量检查法所用注射器及量具必须洁净、干燥并经定期校正;其最大容量应与供试品的标示装量一致,或使待测体积至少占其额定体积的多少?
A. 50%
B. 60%
C. 70%
D. 40%
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药物制剂的鉴别、检查、含量测定等方法应具备的主要条件为( )
A. 代表性
B. 科学性
C. 真实性
D. 专属性
_____ do you usually go to school?
A. What
B. How
C. Where
D. Which
Lilyoften _____the light rail to go to work.
A. takes
B. rides
C. goes
D. travels
—You did a good job, boy. I'm proud of you.—____,Dad.
A. Not at all
B. Thanks a lot
C. That’s all right
D. I’m really glad