矿井主要进、回风巷最高允许风速为()m/s
A、4
B、6
C、8
D、15
参考答案:C
甲鱼内脏中的______必须去除,因腥味较重。
A.肝
B.心
C.肺
D.油脂
In relation to representation:
(a) Define what is meant by a contract of commission and explain the rights and obligations created by a contract of commission. (7 marks)