主存储器与外围设备之间的信息传送操作称为（）。 ["通道操作","存储管理操作","I\/O操作","输入操作"]
（）belongs to emergency power supplying equipments. ["Accommodation lighting","Windlass","Main sea water pump","Compressor"]
水稻插秧后及时垫好出水口，出水口高度（）cm，以防插秧后降雨过大造成格田内积水过深淹没水稻秧苗。
Overspeed of the diesel engine driving an electric generator could cause（）. ["low voltage trip","reverse power trip","damage to windings","excessive exhaust temperature"]
关于存储保护说法正确的是（）。 ["以硬件为主，软件为辅","以软件为主，硬件为辅","以软件实现","不需要任何软件"]
进入7、8月份以后气温逐步升高，有些田块出现冒泡现象时，要及时（），进行气体交换。
