进口押汇按国际结算方式来分，可分为进口信用证项下押汇和（）。
A.仓单押汇
B.进口代收项下押汇
C.可转债项下押汇
D.质押押汇
参考答案：B
She's ____________ on TV. [ ]
A. an actor
B. an actress
C. singer
---Lucy is a _______girl.
---Yes, she always studies hard at night.
A．hard-work
B．hard-working
C．hard-worked
D．hard-works
