In towing，chocks are used to（）.

单项选择题In the case of new crude oil tankers，the additional ballast permitted shall be carried in cargo tanks only if such tanks have been（）before departure from an oil unloading port or terminal.

A.inerted
B.crude oil washed
C.diluted
D.cleaned

单项选择题In most cases，the mere reception or dumping down of the cargo on the ship（）involve completion of loading，because the operation of loading involves all that is required to put the cargo in a condition in which it can be carried．

A.is not
B.has not
C.do not
D.does not

单项选择题In a charter-party，the amount of despatch money payable is often fixed（）.

A.at one fourth the demurrage rate
B.at one third the demurrage rate
C.at half the demurrage rate
D.at the demurrage rate

单项选择题If you had started loading earlier，you（）loading now.

A.would finish
B.will have finished
C.would have finished
D.will be finished

单项选择题If you are guilty of failure to properly perform your duties as Operator of Uninspected Towing Vessels，which of the following actions may NOT be taken? （）

A.Issuance of a letter of warning
B.Suspension of your license
C.Revocation of your license
D.A fine placed against your license