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【单选题】
沥青路面基层主要起( )作用。A.
承重
B.
透水
C.
抗摩
D.
结合
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【单选题】The underlined phrase 'cyclists' failure to keep up with the desired speed of motor traffic' in the second paragraph means______.
A.
cyclists' speed is beyond the limit
B.
cyclists' speed is much lower than that of motorists' and they easily get hurt
C.
cyclists often compete with motorists on the roads
D.
motorists usually took down upon cyclists.
【单选题】According to the passage, driving can be safe if
A.
you are patient
B.
you obey all the traffic rules
C.
you don't cut another car off
D.
you wait in line at a red light
【单选题】What can be a possible result of sleepiness?
A.
Industrial development will be slow.
B.
Traffic accidents.
C.
People will get fired from work.
D.
Heart disease.
【单选题】Traffic restrictions have come into effect in Beijing to improve the capital’s air quality and traffic situation for the 2008 Olympics．
A.
in order that
B.
in an attempt
C.
at an attempt
D.
in a try
【单选题】Red sectors of navigation lights warn mariners of ______.
A.
floating debris
B.
heavily trafficked areas
C.
recently sunken vessels
D.
shoals or nearby land
【单选题】When hearing a distress call, all station shall immediately cease any transmission capable of _with the distress traffi
A.
interfere
B.
interfering
C.
being interfered
D.
interference
【简答题】等离子弧切割都有哪些特点?
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