银行对一年未发生收付活动且未欠开户银行债务的单位银行结算账户,应通知单位自发出通知()日内到开户银行办理销户手续。
A.15
B.20
C.30
D.60
参考答案:C
— According to my grandma, it is a good idea to eat chicken soup when you have a cold.
— ______, scientists agree with her. [ ]
A. Sooner or later
B. Once in a while
C. To be exact
D. Believe it or not
木材的木节会降低其抗压和抗拉强度。