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[单选] Typical marine propulsion plants include() directly coupled to the vessel’s single large-diameter, fixed-pitch propeller.

A . a single, long-stroke, slow-speed, turbocharged, two-stroke diesel engine
B . a single, long-stroke, medium-speed, turbocharged, four-stroke diesel engine
C . two medium-speed, turbocharged, four-stroke diesel engines
D . a variable-speed AC generator

客户李小姐向客户经理小王咨询投资产品,其可投资资产为50万元,从投资起点看,以下哪些产品可供李小姐选择()。 A.公募基金。 B.理财产品。 C.券商集合资产管理计划的小集合。 D.基金特定客户资产管理计划。 接电话时()要适中,不能大呼小叫。 语义。 语速。 音调。 语言。 测试文档是整个测试活动中十分重要的文件。测试文档描述和记录测试活动的全过程。 边界测试是单元测试中最后的也可能是最重要的任务。 For an accurate barometer check,you would(). check it with a barometer on another vessel。 take readings from several barometers and average them。 check it with the barometer at the ship chandlery。 check it against radio or National Weather Service reports of the immediate vicinity。 Typical marine propulsion plants include() directly coupled to the vessel’s single large-diameter, fixed-pitch propeller.
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