I have _____ work to do every day. [ ]
A. too much
B. lot of
C. so many
D. a lot
答案:A
完成反应式(只写主要产物):
。
1991年与1990年相比,投诉意见下降的百分比约为()。
A.42%
B.58%
C.75%
D.94%