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【单选题】
β肾上腺素受体阻断药禁用于A.
糖尿病
B.
支气管哮喘
C.
心绞痛
D.
甲状腺功能进
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反馈参考答案：
举一反三
【简答题】制颗粒时有药物细粉加入
【单选题】under which of the following conditions is the supplier most able to influence or control buyers?
A.
when the supplier's products are not differentiated
B.
when the purchasing industry is an important customer to the supplying industry
C.
when the supplier does not face the threat of substitute products
D.
when the industry is controlled by a large number of companies
【简答题】If we ________ our relations with that country, we’ll have to find another supplier of raw materials. A) diffuse B) diminish C) terminate D) preclude
【简答题】除筛号外 , 也可用来表示筛孔内径的大小,即 每英寸(2.54cm)长度上有多少筛孔。
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