倒闸操作票执行程序标准()。
A、操作准备程序和接令程序
B、操作票填写程序和核对图板程序
C、操作监护程序和质量检查程序
D、以上全是
参考答案:D
Which of the following investors is least susceptible to inflation risk()
A. A financial institution with assets concentrated in fixed-rate mortgages.
B. An individual with a 5 year certificate of deposit at a local financial institution.
C. The holder of a 15-year bond with a coupon formula equal to the U. S. prime rate plus 3.25%.
煤尘的爆炸性由()进行鉴定。
A.上级主管部门
B.煤矿安全监督机构
C.国家授权单位
D.煤炭生产企业