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【多选题】
电动汽油泵的型式根据结构不同可分为A.
泵
B.
齿轮泵
C.
涡轮泵
D.
侧槽泵
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举一反三
【判断题】Hemoglobin exists in two interchangeable structural states, T and R. The T state is most stable when oxygen is bound. Oxygen binding promotes transition from the T to the R state.
A.
正确
B.
错误
【单选题】From the last sentence in the passage, what's the writer's tone about the development of the company?
A.
Ironic.
B.
Objective.
C.
Indifferent.
D.
Optimistic.
【单选题】When you make eye contact, it connects with the audience because:
A.
They become engaged
B.
They don't want you to stare at them
C.
It shows you are real
D.
When you make eye contact, you make a friend
【单选题】In economics, demand implies something slightly different from the common meaning of the term. The layman, for example, often used the term to mean the amount that is demanded of an item. Thus,if the ...
A.
increases as price decreases
B.
can be predicted if there is a change in price
C.
remains constant at the same price
D.
is influenced by changes in the consumer's income and tastes
【单选题】When you make eye _____ with someone, remember to smile.
A.
contact
B.
contract
C.
constant
D.
control
【单选题】How would you make proper eye contact when being introduced?
A.
Make soft eye contact.
B.
Never make eye contact.
C.
Never maintain the eye contact while speaking.
D.
Stare at the person with an intense pupil-to-pupil gaze.
【单选题】How long should you make eye contact when meeting someone?
A.
Don't make eye contact
B.
2-3 seconds
C.
5-6 seconds
D.
1 second
【单选题】______ is not a job of the radar antenna．
A.
To receive the high-frequency pulses from the transmitter
B.
To focus the pulses into a beam，and send them into space
C.
To pick up reflected pulses coming from objects that have been struck by the beam
D.
To reflect microwaves
【简答题】An old friend from the US whom I was looking forward to staying with , telephoned from the airport to tell me that he had arrived . I was still at the at that time , but I had got everything ready for...
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