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【简答题】
You ______ wear a white shirt and black trousers to work but I really think you ______ stop wearing T-shirts, as it doesn't give the right impression to the customers. And don't say you ______ wear what you want. When you were at school you ______ wear what you wanted but not in our company. If you lose your job because of what you are wearing, you ______ be able to wear T-shirts every day in the future.
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【单选题】The position of _____ on the crosshead on a large diesel engine is determined by dowel pins.
A.
the guideway
B.
the piston rod
C.
the crosshead shoes
D.
the interlocked circlip
【单选题】The crosshead and crankpin bearings are secured to the_____ by means of fitted bolt.
A.
crosshead guides
B.
piston rod
C.
crosshead shoes
D.
connecting rod
【单选题】The position of ______ on the crosshead is determined by dowel pins.
A.
grooves
B.
piston skirts
C.
position rings
D.
crosshead shoes
【判断题】敏感性分析常用于短期经营决策。( )
A.
正确
B.
错误
【单选题】The immediate cause of the crash of Colgan Air Flight 3407is __________.
A.
the captain was chitchatting with the first officer
B.
thc young first officer had little experience dealing with icyconditions
C.
both the captain and the first officer were quite tired after along-time journey
D.
the captain Marvin Renslows mistaken operation
【单选题】In a large slow-speed propulsion diesel engine, the force applied to the crosshead is ______.
A.
against the crosshead during power stroke and away from the crosshead during the compression stroke
B.
against the crosshead during the compression stroke and away from the crosshead during the compression stroke
C.
against the crosshead during the power and compression strokes
D.
away from the crosshead during the power and compression strokes
【单选题】The slippers run ______ in the crosshead guides as the piston and rod are ______ and prevent the top of the connecting rod from moving sideways.
A.
up and down / reciprocating
B.
up and down / rotating
C.
back and forth / reciprocating
D.
back and forth / rotating
【单选题】The position of______on the crosshead is determined by dowel pins.
A.
the grooves
B.
the piston rings
C.
the piston skirts
D.
the crosshead shoes
【简答题】阅读理解: Health officials in the United States reported last week on what they believe could be a medical first. Officials said doctors performed what could be the first double lung transplant on a perso...
【简答题】一日三餐的能量分配大体为( )。
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