[单选] 天竺葵种类和品种类型丰富，其中天竺葵为最常用的种类，目前生产上较先进的繁殖方法是（）。

[单选] 使用时间久后，舵柄与转舵机构之间的间隙磨损后能自动补偿的是（）。

[单选] An isotherm is（）.

[问答题] 影响换热器传热量的因素有哪些

[单选] As a high pressure system approaches，the barometer reading（）.

[单选] As a vessel changes course to starboard，the compass card in a magnetic compass（）.

[单选] As it approaches，a typical warm front will bring（）.

[单选] As compared to carbon dioxide，dry chemical has which advantage?（）

[单选] As seen from the tow，what should connect the leading ends of both towing bridle legs to the main towing hawser?（）

[单选] As you approach Giles Bend Cutoff Light (mile 367.7 LDB)，what type of daymark would you see on the light structure?（）

[单选] An oiler was badly burned and you are communicating with a passenger ship that has a doctor and hospital on board. You want to rendezvous in a certain position so the oiler can be evacuated for medical treatment. Which code should your message contain?（）

[单选] As the temperature of an air mass decreases，the（）.

[单选] Antares is found in what constellation?（）

[单选] Any extinguishing agent used on a Class “C” fire must have which important property? （）

[单选] Any firefighting equipment that is carried in addition to the minimum required number on a ship must（）.

[单选] Aphelion is the point where the Sun（）.

[单选] An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead?（）

[单选] Application for a waiver of any requirements of the regulations for oil transfer operations must be submitted to the（）.

[单选] At 0815，visibility is excellent and you can see Montauk Point. Montauk Point Light is（）.

[单选] Apparent wind speed blowing across a ship under tow can be measured by a(n)（）.