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【单选题】
汽车在转弯行驶时,差速器中行星齿轮的运动状态()。
A.
静止不转
B.
只有公转
C.
只有自转
D.
既有公转又有自转
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参考答案:
举一反三
【单选题】根据《 2010 年通则》解释,卖方承担责任、费用、风险最小的贸易术语是 ( )
A.
CIF
B.
CIP
C.
EXW
D.
DDP
【单选题】The purpose of a temperature sensing device installed in the stack of a small automatically fired auxiliary steam boiler is to secure the oil burner .
A.
in the of a flame failure
B.
in the of a stack fire
C.
when the water level reach the crown sheet
D.
when the feed pump discharge pressure drops to a preset minimum
【单选题】Parasite power is very useful for applications ______ require remote temperature sensing or that are very space constrained.
A.
what
B.
while
C.
that
【单选题】在茶艺服务接待德国客人时,不要向其推荐( )茶点。
A.
花生
B.
核桃
C.
李干
D.
开心果
【单选题】在茶艺服务接待德国客人时,不要向其推荐()茶点。
A.
花生
B.
核桃
C.
开心果
D.
李干
【简答题】在茶艺服务接待德国客人时,不要向其推荐( )茶点。
【单选题】_____ is used for sensing the temperature of the room in the air condition system.
A.
An expansion valve
B.
An evaporator
C.
A thermostat
D.
A condenser
【单选题】时速 300km及以上动车组列车不超员
A.
300
B.
200
C.
350
D.
250
【单选题】temperature sensing protective devices operate a control circuit which can ( )the current when the device reaches a predetermined temperature.
A.
switch off
B.
switch on
C.
operate
【单选题】Temperature sensing protective devices operate a control circuit which can ______the current when the device reaches a predetermined temperature.
A.
switch off
B.
switch on
C.
operate
D.
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