关税配额管理是以配额税率这个成本杠杆来实现对某些重要商品相对数量的限制。 ( )
参考答案：对
产后郁冒但头汗出为
A．亡血阴虚，阳气独盛，狐阳上出，挟阴津外泄所致
B．郁冒主症之一
C．郁冒欲解之象
D．病愈之象
E．郁冒未解之象
Sandra is a diligent worker. I know that she will achieve great success in ____shedecides to do. [ ]
A. however
B. whichever
C. whatever
D. whenever
