电子商业汇票贴现的业务品种均属于（）。
A.卖断式贴现
B.买断式贴现
C.转贴现
D.再贴现
参考答案：B
If you are in the zoo, remember not to touch or go near the animals. Although some of the animals are cute, you _________ leave them alone.
A．must
B．will
C．may
D．can
为了进一步深化改革，必须正确理解和把握“三个有利于”的标准。为什么？
