问题
多项选择题
传统的健康观经历了（）阶段。
A.神赋说
B.失衡说
C.生物观
D.心理观
答案
参考答案：A, B, C
搜题请搜索小程序“爱下问搜题”
传统的健康观经历了（）阶段。
A.神赋说
B.失衡说
C.生物观
D.心理观
参考答案：A, B, C
In commodity trading, the exchange removes any daily losses from a trader's account and acids any gains to the trader's account. This process is known as :
A．
| A. initial margin. |
B．
| B. maintenance margin. |
C．
| C. marking to market. |