【单选题】
Cooling makes the engine metals their mechanical properties（）.
A、Remain
B、to remain
C、retain
D、to retain
查看正确答案A、forces B、enables C、makes D、is able to
搜题
更多“Cooling makes the engine metals their mechanical properties（）.”相关的问题
第4题
A、Cooling water is alkalescence B、cooling water is acidity C、cooling water has salinity D、cooling water has impurity
第5题
A、A.the central cooling system, different B、B.the central cooling system, the same C、C.the open cooling system, different D、D.the open cooling system, the same
第6题
A、A.cooling water of the cooling system B、B.fuel of the FO system C、C.LO of the LO system D、D.cooling water of the cooling system and LO of the LO system
第7题
A、preventing oxygen from reaching the burning material B、cooling the burning material below its ignition temperature C、using the extinguishing agent to make the burning material fire-resistant D、using the extinguishing agent to absorb the heat
第8题
A、 Perform root cause analysis and then test the theory to determine the cause. B、 Make changes to the system and document everything once the problem is resolved. C、 Make multiple changes to all affected areas to resolve all potential issues. D、 Make a change and if the problem is not resolved， reverse the change.
第9题
A、Because the piston is exposed to very high temperature, it must be cooled B、The lower the piston cooling temperature is, the better it is C、Both water and lube oil can be used as coolant D、One of the piston cooling methods is vibration cooling, with better effect
