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【多选题】
下面的选项哪个是正确的A.
4 世纪初，涉归死，其嫡子廆继为，与吐谷浑不和，吐谷浑遂率所部西迁上陇， 止于枹罕（今临夏）。
B.
自吐谷浑至干，经 6 世 8 传，吐谷浑部得据甘、，实控黄河、（今四川省松潘），赤水、白兰，北界黄河，积石山。
C.
吐谷浑以祖父吐谷浑为其族名，从此，吐谷浑由人名转为姓氏和族名。
D.
公元 608 年，隋朝进攻吐谷浑，击败吐谷浑伏允，设西海、河源等郡。
E.
时，唐与吐谷浑在乌海、且末、、岷州与吐谷浑大战，吐谷浑末。
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【单选题】Which of the combustion parameters listed is used in a diesel engine, but NOT related to the injection system?
A.
Atomization
B.
Metering
C.
Effective stroke
D.
Penetration
【简答题】一个算法的时间复杂性是算法 的函数。
【单选题】In a diesel engine, offers the heat energy directly; works as working medium and changes the heat energy to mechanical energy.
A.
the burning of the fuel; medium shaft
B.
fuel spray; fresh air
C.
fuel; fuel spray
D.
the burning of the fuel; the burned gas mixture
【单选题】In a diesel engine, an integral liner is one in which the cooling water __________Iflows through the cylinder liner jackets Ⅱ.touches the outer side of the liner
A.
I only
B.
Ⅱ only
C.
both I and Ⅱ
D.
neither I and Ⅱ
【单选题】The most serious effect of air trapped in a diesel engine jacket water cooling system is that it ______．
A.
Causes colloid suspension in the cooling water
B.
Reduces the capability of the lubrication system
C.
Can form pockets which block the flow of coolant through the system
D.
Leads to the scuffing of cylinder walls
【单选题】One result of operating a diesel engine at light load with excessively low cooling water temperature is a/an .
A.
decrease in ignition lag
B.
increase in fuel economy
C.
reduction in lube oil viscosity
D.
increase in cylinder misfiring
【简答题】Technician A says that the ignition system in a diesel engine uses an ignition coil to increase the low voltage of the battery t0 20,000 volts or more in order to create a spark across the spark plug ...
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