使用航迹舵时,选取航迹带宽度应根据()确定。
A.航行区域和装载状态
B.海面状况和装载状态
C.船舶大小和海面状况
D.航行区域和海面状况
参考答案:D
In relation to the Contract Law of China:
(d) state whether a contract is formed where an offer and a notice of withdrawal of the offer reach the offeree simultaneously. (2 marks)
有突出危险的矿井,在揭开煤层前,预留岩柱段的巷道必须()
A.跨落
B.放炮
C.支护