Some （） lying in the starting air lines will give rise to corrosion and can cause water hammer. ["air","moisture","cooling water","lubricant"]
A vessel is wind rode when it is（）. ["at anchor and heading into the wind","backing into the wind","carrying lee rudder","necessary to apply a leeway correction to the course"]
下面有关Free Transform（自由变换）命令描述正确的是（） ["按住Alt键的同时拖拉把手可以对图像进行自由扭曲变形","按住Ctrl键的同时拖拉把手可以对图像进行自由扭曲变形","按住Alt+Shift键的同时拖拉把手可以对图像进行斜切变形","按住Ctrl+Shift键的同时拖拉把手可以对图像进行斜切变形"]
（）业务可以进行业务撤销。 ["农信银通存","农信银通兑","存款冲销","农信银电子汇兑"]
A vessel brought alongside should be fended off the towing vessel by（）. ["crew members using their arms","crew members using the strong muscles of their legs","fenders","No fending is necessary due to the rugged construction of most towing vessel"]
为什么鱼类投饲需坚持“定时、定位、定质、定量”的原则？
