A wave entering（）is likely to produce bores． ["shallow water","deep water","river","tide"]
画出WK-2型光控器外部接线图。
The mechanical exhaust valve operation system is replaced by（）in an electronic controlled ME engine. ["a system with a Hydraulic Power Supply (HPS) unit","a system with roller guides for exhaust valves","a system with an electronically controlled Alpha Lubricator","a system directly powered by electric motor"]
（）is not a feature of the electronic controlled engines. ["Lower fuel consumption","Better balanced cylinder power","A shorter overhaul period","Less smoke emissio"]
WXH-11型微机保护有几种状态？各状态下的方式开关、巡检开关如何设置？
补画E-14视图中所缺的第三视图。
