问题：
[问答题,简答题] 烧成过程中出现的液相其何作用？
问题：
[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（）。
十字头式。拨叉式。滚轮式。摆缸式。
问题：
[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（）。
播种繁殖。扦插繁殖。组织培养。分株繁殖。
问题：
[单选] A wobbling tail shaft is an indication of（）.
shallow water。an engine that is misfiring。a tight tail shaft gland。worn stern bearing or misalignment。
问题：
[单选] After an engine is started you should（）.
increase engine speed to insure adequate flow of oil to all parts of the engine。pay no attention unless there are unusual noises from the engine。check operating pressures and temperatures，and check for leaks。run the engine at idle until the temperature has increased。
问题：
[单选] An instrument that indicates wind direction is known as a(n)（）.
weather vane，wind vane or wind sock。hydrometer。hygrometer。sling psychrometer。
问题：
[单选] An instrument that maintains a continuous record of humidity changes is called a（）.
thermometer。barometer。hygrograph。thermograph。
问题：
[单选] An intermediate spring is（）.
fitted in each leg of the towing bridle。generally located between the "fishplate" and the main towing hawser。secured at the "H" bitts。usually made of manila hawser。
问题：
[单选] An isotherm is（）.
a line on a weather map connecting equal points of both temperature and pressure。an instrument that measures the climatological effects of temperature。a line connecting points of equal barometric pressure on a weather map。a line connecting points of equal temperature on a weather ma。
