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【单选题】
下列五类Ig的特性哪项是错误的A.
免疫应答过程中产生最早的是IgG
B.
IgM分子量最大
C.
SIgA多为体
D.
IgG是唯一通过胎盘的免疫球蛋白
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反馈参考答案：
举一反三
【单选题】The government decides to impose a price ceiling on a good, because it thinks the market-determined price is “too high.” If the government imposes the price ceiling below the equilibrium price:
A.
. consumers will respond to the lower price and therefore wish to purchase more of the good than at the equilibrium price.
B.
. producers will respond to the lower price and therefore offer more units for sale.
C.
. consumers will be able to purchase more of the good after the price ceiling is imposed.
D.
. it will not be binding.
【简答题】简述檩条的荷载和荷载组合,并说明如何对檩条进行截面选择?
【简答题】涡轮增压器的三种基本类型
【简答题】测定配合力的方法有哪些？
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