物料和成品应当有经批准的现行质量标准;必要时,中间产品或待包装产品也应当有质量标准。（ ）
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每批药品应当有批记录，包括批包装记录、批检验记录和药品放行审核记录等与本批产品有关的记录。批记录应当由生产部门负责管理,至少需保存至药品有效期后二年。（）
A. 对
B. 错
下面哪个句子是降调
A. Is it yours?
B. May I have a try?
C. May I come in?
D. What's the time?
下面哪个句子是降调
A. You must take him home.
B. Has the letter been answered?
C. Did he visit her?
D. Can I help you?
下面哪个句子是升调
A. What a good idea!
B. How beautiful!
C. What a pity!
D. Can you hear?
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