当供求法则发生作用时,粮食减产在市场上的产生的影响是是( )。
A. 政府规定个人购买粮食的数量
B. 粮食价格上涨
C. 粮食价格下降
D. 粮食交易量增加
I wrote a letter to the car dealer, _______ what happened to my new car.
A. explaining
B. to explain
C. explains
D. explained
There are more than 20 proposals ________ at the meeting.
A. discussed
B. to be discussed
C. discussing
D. having been discussed
When we ________ obstacles and setbacks, we must apply our strong willpower and persevere until we finally succeed.
A. figure
B. deal
C. confirm
D. encounter