小红周六早上要坐63道口算起,如果她每分钟做9道,需要( )分钟.
A.5
B.6
C.7
D.8
63÷9=7(分钟).
故选:C.
--- Mum, I got good marks in the final exams.
--- .
A.It’s very nice of you.
B.Good luck
C.Congratulations!
D.I’m sorry to hear that.
试论述中央银行的业务原则。