营销信息系统的构成要素包括（）。
A.确定所需信息
B.开发信息
C.传递信息
D.校验信息
参考答案：A, B, C
-Do you think their badminton team will win the championship?
- ________. Ours is much stronger than theirs. [ ]
A. Of course
B. It depends
C. Don’t mention it
D. By no means
注浆方法有哪些？
