【简答题】The USA includes _______ states and a federal district, the District of ___________, which is the seat of the Federal Government.
【单选题】铜生产企业利用铜期货进行卖出套期保值的情形是______。
【单选题】Bill of Rights of the USA includes:
A.
the first 5 amandments of the U.S. Constitution
B.
the first 10 amandments of the U.S. Constitution
C.
the first 15 amandments of the U.S. Constitution
D.
all of the amandments of the U.S. Constitution
【单选题】经过纯电阻电路,电阻电压和电流的关系是?
【单选题】【辅】 治疗结核病时乙胺丁醇与利福平合用的目的