现代期货市场交易制度的重要意义在于()
A.有效控制期货市场风险
B.保障期货市场的平稳运行
C.降低投机者投入成本
D.确保到期日进行实物交割
参考答案:A, B, C
恐伤()忧伤()
A.心
B.肝
C.脾
D.肺
E.肾
-Why does he look so upset'?
-Because the suggestion he____at the meeting was tumed down. [ ]
A. put aside
B. put forward
C. put out
D. put down