往来资金预测分析时,可以按照哪些区间段预测()
A.天
B.周
C.旬
D.月
参考答案:A, B, D
This question is so hard that very ______ students can answer it.
A.few
B.little
C.a few
D.a little
国际单位制中时间的单位为()。
A.min
B.s
C.h
D.d