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【单选题】
关于缺铁性贫血的铁代谢检查结果,错误的是:A.
血清铁下降
B.
血清总铁结合力增加
C.
血清转铁蛋白饱和度下降
D.
红细胞游离原卟啉减少
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皮皮学刷刷变学霸
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【简答题】粉体材料结拱产生的原因?
【单选题】Which of the following is true of a voluntary export restraint (VER)?
A.
a. A voluntary export restraint ensures that foreign exporting firms are unable to exercise monopoly power.
B.
b. A voluntary export restraint usually requires that the foreign exporting firms act like a cartel, restricting sales and raising prices.
C.
c. A voluntary export restraint generates more revenue for the government than a tariff or quota.
D.
d. Voluntary export restraints have only been used by the poor and developing nations to protect their domestic industries.
【简答题】“Voluntary”Export Quotas