【单选题】He paid 30% of the price for the house , and promised to pay by the end of the month.
【单选题】The price paid by buyers in a market will increase if the government
A.
increases a binding price floor in that market.
B.
increases a binding price ceiling in that market.
C.
decreases a tax on the good sold in that market.
D.
More than one of the above is correct.
【简答题】试述青贮饲料的优越性,青贮的原理及条件?
【多选题】I型超敏反应的特点
C.
主要表现为毛细血管扩张、通透性增加、平滑肌收缩
【单选题】The price paid by buyers in a market will decrease if the government
A.
imposes a binding price floor in that market.
B.
increases a binding price ceiling in that market.
C.
increases a tax on the good sold in that market.
D.
decreases a binding price floor in that market.