单选题因为矿石密度大所占容积（），所以矿石专用船的货舱容积占全船容积的比例（）。A大；高B小；高C小；低D大；低
单选题
因为矿石密度大所占容积（），所以矿石专用船的货舱容积占全船容积的比例（）。
A
大；高
B
小；高
C
小；低
D
大；低
参考解析
解析：
暂无解析
相关考题：
单选题（）will be broadcast every one hour on VHF Channel 6.AVHF newsBChannel rulesCVisibility timeDNavigational warnings
单选题The device allowing for the change in volume of the cooling water in a propulsion diesel engine closed cooling system is the （）.Afresh water expansion tankBsea water expansion tankCthermostatic expansion valveDjacket water cooler accumulator
单选题Wrought iron has an inherent resistance to corrosion but is not to be had freely , its place has been taken by the cuprous alloysAccording to the above sentence , which of the following statements is true?（）AWrought iron can resist liquids flowBIt is difficult to attain the wrought ironCWrought iron should be combined with cuprous alloysDThe cuprous alloys have mere disadvantages than wrought iron
单选题An alternator switchboard has a synchroscope and synchronizing lamps, if the synchroscope is broken, which of the steps listed is the most essential before an alternator can be paralleled with the bus （）AThe breaker should be closed when one synchronizing lamp is dark and the other is brightBThe breaker should be closed when both synchronizing lamps are brightCThe frequency meter should be used to determine that the incoming alternator frequency is slightly higher than the busDA portable phase sequence indicator must be used to verify the information from the lamps
单选题关于限制功率的液压系统的以下说法中错误的是（）。A恒功率变量泵多用于阀控型液压系统B恒功率变量马达可用于阀控型或泵控型液压系统C有级变量马达仅用于阀控型液压系统D功率限制器多用于泵控型液压系统
单选题Limber is a term associated with（）.Aemergency gearBdrainageCdeck cargo storageDsecuring gear
单选题After arrived at the port, if it is necessary to lift the piston out and inspect the M-E temporarily, the chief engineer should report the situation to the（）, and the operation could be performed only after having the approvement of relevant department.Amaritime safety administrationBship survey bureauCcompany managerDcaptain
单选题铅酸电池检查时，应：（） 1）穿戴好防护用具 2）应将比重计内空气排出后再插入电解液中 3）插入液中后再挤压 4）检查时应用清洁棉丝清洁，檫干电池A1）2）B1）2）3）C2）3）4）D1）2）4）
单选题用于改善滑油性能的清净分散添加剂的作用是（） ①吸收使用中生成的油泥、积碳，并将其分散于油中 ②在固体表面形成吸附膜，防止炭粒、树脂沉积于发动机内部 ③防止低温下生成漆膜、油泥沉淀物 ④中和因滑油劣化产生的酸性物质及燃料中硫分所形成的硫酸A①+④B①~④C①+③+④D①+②+④