______是导向经济效率的基本环节。
A.消费 B.垄断C.生产 D.竞争
参考答案:D
解析: 本题涉及的考点是不完全竞争市场。竞争是导向经济效率的基本环节。
— You are first in the high jump. Congratulations!
— _____ . [ ]
A. Don't say so.
B. How can you say that?
C. Thanks a lot.
D. That's right.
I don’t like the way _______Tom speaks to his mother. Which one is wrong?
A.that
B.in which
C.by which
D./