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【单选题】
有价强度的描述正确的是A.
随剂量增加药物引起的效应极限
B.
若A药比同剂量的B药产生的效应大，A药的效能肯定比B药强
C.
产生同一效应所需的剂量或浓度
D.
只指引起50%的实验动物阳性反应时的药物剂量
E.
只指引起50%的实验动物死亡时的药物剂量
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【简答题】采用KMnO 4 法测定Fe 2+ 时，若用HCl控制液性，被测物的含量将( ) A．偏高 B．偏低 C．正常 D．不确定
【单选题】Yes, new technology has been eating jobs forever, and always will. But there's been acceleration . As Davidson notes, “In the 10 years ending in 2009, U.S. factories shed workers so fast that they era...
A.
gains of technology have been erased
B.
job opportunities are disappearing at a high speed
C.
factories are making much less money than before
D.
new jobs and services have been offered
【单选题】There's always been a _______ about successful businessmen
A.
stereotype
B.
consensus
【单选题】There's always been a (stereotype) about successful businessmen.
A.
暴风雨
B.
老一套；对......存有成见
C.
步骤
【单选题】There's always been a ______ about successful businessmen.
A.
stereotype
B.
identity
C.
conformity
D.
pump
【简答题】Have you ever been afraid to talk back when you were treated ____1 ___? Have you ever bought something just because the salesman talked you into it? Are you afraid to ask someone for a date. Many peop...
【单选题】When Nick says, "That's right, there's always next time," he means
A.
he played badly this year, but he'll be better next year.
B.
his team didn't win this time, but they might next time.
C.
his relationship with Talia has been bad lately, but it'll be better soon.
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