【单选题】
The medicine （） cool, clean and dry.
A、must keep
B、must be kept
C、must be keep
D、must be in
查看正确答案A、water cooling B、oil cooling C、air cooling D、combined cooling
搜题
更多“The medicine （） cool, clean and dry.”相关的问题
第2题
A、Cooling water is alkalescence B、cooling water is acidity C、cooling water has salinity D、cooling water has impurity
第3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4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
第5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、discharge side of the centrifugal pump B、suction side of the centrifugal pump C、the lowest point of the cooling water system D、inlet of the main engine
第8题
A、Put out the fire right now and cool hold No.2. B、Put off the fire right now and cool around No.2. C、Put on the fire right now and cool hold No.2. D、Put out the fire right away and cool around hold No.2.
