应收票据主要有（）。
A.银行本票
B.银行支票
C.商业承兑汇票
D.银行承兑汇票
参考答案：C, D
I sent a big bunch of flowers to the nurse as an of thanks for her taking good care of my grandpa in the nursing home.
A．attitude
B．impression
C．appreciation
D．expression
净化厂常用的缓蚀剂有哪些？
