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【简答题】
什么是氧平衡？分哪几种不同情况？各有什么含义？
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反馈参考答案：
举一反三
【单选题】One of the main functions of lube.oil is to remove ( ) from oil cooled pistons
A.
power
B.
friction
C.
heat
【单选题】You are on a tanker discharging oil．When all of the oil that the main cargo pumps can handle is pumped out of a tank，the remainder is ______．
A.
Stripped out and pumped directly ashore into the mainline as the remaining cargo tanks are pumped out with the main pumps
B.
Stripped to one tank and then pumped out with the main pumps
C.
Stripped out and pumped directly ashore after all the tanks have been emptied by the main pumps
D.
Gravitated to the centers from the wings and pumped out with the main pumps
【单选题】A lube oil sample taken from the main engine lube oil system has dark yellow opaque colorThis is the result of .
A.
water contamination
B.
mixing oils of two widely different viscosities
C.
overheating
D.
aeration
【单选题】The countrys main exports are oil, cars and consumer electronic gadgets, oil ______the most important of these.
A.
has been
B.
is being
C.
is
D.
being
【多选题】关于感觉和知觉的描述正确的是
A.
感觉是通过某一感觉器官获取某一事物单个属性信息的过程。
B.
感觉反映事物的个别属性。
C.
感觉是知觉的基础，知觉是感觉的深入。
D.
知觉反映事物的整体属性。
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