对出口商来说，通过福费廷业务进行融资最大的好处是（）。
A.转嫁风险
B.获得保费收入
C.手续简单
D.收益率较高
参考答案：A
— Our holiday cost a lot of money.
— Did it? Well, that doesn't matter ________ you enjoyed yourselves.[ ]
A. unless
B. as far as
C. as long as
D. until
有体式牙轮钻头的直径一般在（）毫米以上。
A、211
B、311
C、346
D、371
