A lubricant often has to perform. many duties in any situation, in addition to its fundame
A.resisting oxidization
B.reducing friction
C.promoting moving speed
D.developing inertia
A.resisting oxidization
B.reducing friction
C.promoting moving speed
D.developing inertia
How often does the shuttle bus run?
A.Every five minutes.
B.Every fifteen minutes.
C.Every half hour.
D.Every hour.
Mark often attempts to escape ________ whenever he breaks traffic regulations.
A) having been fined
B) to be fined
C) to have been fined
D) being fined
A.They are too busy to spare the time.
B.They have to learn many things.
C.They often have no such interests.
D.They don't know how to make a choice.
A.The long history shatters its ground.
B.The canals under it begin to collapse.
C.It has been half immersed in the seawater.
D.It is flooded far mote often than before.
Why does the speaker mention what is printed on certain T-shirts?
A.To show how politics have changed over the years.
B.To point out that T-shirts often provide personal information.
C.To illustrate how the printing on clothing has improved.
D.To support that T-shirts are a form. of art.
Which of the following is NOT mentioned in the passage?
A.People from different cultures handle space in different ways.
B.Many of the Americans who had lived overseas were bothered by cultural differ-ences.
C.Misunderstanding often develop between Americans and Arabs in social con-tacts.
D.Dr. Hall is interested in cultural differences, especially man's use of space.
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A.A rich person is not necessarily happy.
B.Things people often overlook may be the very source of happiness.
C.Happiness can be promoted on a scientific basis.
D.We should mainly rely on ourselves for happiness.
E.Happiness lies in giving instead of taking.
F.The environment is a source of happiness.
G.Happiness can be achieved if we stick to the best of our values.
A.specific gravity
B.viscosity
C.acid value
D.calorific value
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