大多数国家规定,铂金饰品总的铂族元素不得低于()
A.60%
B.80%
C.95%
参考答案:B
— Why didn't you tell him about the meeting?
— He had rushed out of the room ______ I could say a word. [ ]
A. before
B. until
C. when
D. after
持票人超过规定期限提示付款的,银行汇票、银行本票的出票人、商业汇票的承兑人,在持票人做出说明后,视情况决定是否承担付款责任。( )