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【单选题】
常用的表示药物安全性的参数是A.
半数致死量
B.
治疗指数
C.
极量
D.
半数有效量
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A.
gave out
B.
gave away
C.
gave off
D.
gave up
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A.
left out
B.
picked out
C.
let out
D.
took out
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A.
东部地区
B.
西部地区
C.
东北地区
D.
中部地区
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【单选题】品牌发展的第三阶段突出特征是
A.
以艺术发展和革新为核心的空前发展
B.
工业生产技术的进步推动了品牌的创新与发展
C.
法国标致是这阶段的代表品牌
D.
艺术与工业生产技术的共生融合促进发展
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