环境质量评价类型可以按评价时间分为回顾性评价、环境质量现状评价和下列的哪一项()
A.大气质量评价
B.环境影响评价
C.水质评价
D.土壤质量评价
E.总环境质量评价
参考答案:B
For a bond currently priced at $1018 with an effective duration of 7.48, if rates moved down 75 basis points, the new price would be approximately:()
A. $942.
B. $961.
C. $1075.
绞车司机开车时应,(),同时(),使滚筒慢转,平稳启动加速。
A、缓缓压紧离合闸把
B、缓缓松开制动闸把
C、压紧离合闸
D、立即松开制动闸