Whether a ship is sailing before the wind or sailing in the rough sea, we must reduce the fuel injection of the main engine.For the former one, it aims to prevent the main engine being（）, while for the later one, it aims to prevent the main engine being（）.

检验检疫机构签发的产地证书是（）海关征收或减免关税的有效凭证。

Before welding is permitted on a fuel tank, it must be certified or declared （）

Q2: Is foreign language important for a receptionist?

A sail hook is used for（）.

A sail hook is used for（）.

A sail hook is used for（）.

A vessel sailing from Liverpool to New York puts into Boston，Mass. for emergency repairs. If no inward foreign cargo is to be discharged at that port，which of the following documents is required?（）

Before shutting off the fuel supply to stop a medium or high–speed diesel engine, why is it necessary to allow the engine to idle for a few minutes?（）

Carlos paid $154.00 for two tickets to a concert. This price included a 25 percent handling fee for each ticket and a $2 transaction fee for the total sale. What was the price for a single ticket before the additional fees?

A seaman leaves a vessel before it sails from a foreign port. He informs the Chief Officer that he won’t return. After the vessel sails，the Chief Officer finds the seaman’s work clothes in his locker. How should the Master handle this matter?（）

海关对进口货物凭出入境检验检疫机构签发的（）单据办理海关通关手续。