We have lunch in the _____. [ ]
A. morning
B. afternoon
C. evening
D. night
答案:B
一件物品去年提价10%,今年又比去年降价10%,现在售价是去年提价前售价的( )
A.110%
B.100%
C.99%
D.98%
苏联解体后,意味着两极格局终结。