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【多选题】
(中国药典》(2015年版)规定的“对照品“是指(A.
自行制备、精制、标定后使用的标准物质
B.
由国家食品药品监督管理局指定的单位制备、标定和供应的标准物质
C.
按效价单位(或pg)计
D.
按干燥品(或无水物)进行计算后使用
E.
应附有使用说明书、质量要求、使用有效期等
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】He was a funny looking man with a cheerful face, good-natured and a great talker. He was described by his student, the great philosopher Plato, as 'the best and most just and wisest man.' Yet, this sa...
A.
Socrates and his death.
B.
Socrates beliefs.
C.
Socrates, a wise man and his beliefs.
D.
Socrates and his philosophy.
【简答题】请给出分组交换网提供的虚电路服务与电路交换的区别，给出永久虚电路与交换虚电路的区别以及数据报服务的特点。
【单选题】He was a funny looking man with a cheerful face, good-natured and a great talker. He was described by his student, the great philosopher Plato, as' the best and most just and wisest man.' Yet, the sam...
A.
contrast
B.
a sequence
C.
emphasize
D.
an example.
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