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【单选题】
下列不属于再障发病机制的是A.
缺乏维生素B12
B.
造血干祖细胞缺陷
C.
造血微环境异常
D.
免疫异常
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反馈参考答案：
举一反三
【单选题】If the supply of a good is relatively elastic, changing the price causes
A.
a relatively small change in the amounts that buyers are willing to buy.
B.
a relatively small change in the amounts sellers are willing to sell.
C.
a relatively large change in the amounts sellers are willing to sell.
D.
no change in the amounts sellers are willing to sell.
【单选题】Behind bad luck comes good luck. So something good happened _____ you..
A.
in
B.
to
C.
for
D.
with
【简答题】发展党员坚持 的原则入党,是由我们党的性质和宗旨所决定的。
【单选题】If the demand for donuts is elastic, a decrease in the price of donuts will
A.
increase total revenue of donut sellers.
B.
decrease total revenue of donut sellers.
C.
not change total revenue of donut sellers.
D.
There is not enough information to answer this question.
【简答题】直链淀粉遇碘呈蓝色，支链淀粉遇碘呈（）
【简答题】淀粉遇碘可以发生灵敏的颜色反应,直链淀粉遇碘呈 ,支链淀粉遇碘呈 。
【单选题】“时间顺序合理;与已知药品不良反应相符合;可以由患者的临床表现或已知的药物反应特征解释。”为国家药品不良反应监测中心因果关系评定方法5级标准中的( )
A.
肯定
B.
很可能
C.
可能
D.
可疑的
【简答题】直链淀粉遇碘呈______色，支链淀粉遇碘呈______色，糖原遇碘呈______色。
【判断题】If we observe that when the price of chocolate decreases by 10%, quantity demanded increases by 25%, then the demand for chocolate is price elastic.
A.
正确
B.
错误
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