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【单选题】
Motorways are, no doubt the safest roads in Britain. Mile【41】mile, vehicle for vehicle, you axe much【42】likely to be killed or seriously injured than on an ordinary road. On【43】hand, if you do have a serious accident on a motorway, fatalities are much more likely to【44】than in a comparable accident【45】on the roads. Motorways have no【46】bends, no roundabouts or traffic lights and【47】speeds are much greater than on other roads. Though the 70 mph limit is【48】in force, it is often treated with the contempt that most drivers have for the 30 mph limit applying in built up areas in Britain. Added to this is the fact that motorway drivers seem to like traveling in groups with perhaps【49】ten meters between each vehicle. The resulting horrific pile-ups【50】one vehicle stops for some reason—mechanical failure, driver error and so on—have become all【51】familiar through pictures in newspapers or on television. How【52】of these drivers realize that it takes a car about one hundred meters to brake to a stop【53】70 mph? Drivers also seem to think that motorway driving gives them complete protection from the changing weather.【54】wet the road, whatever the visibility in mist or fog, they【55】at ridiculous speeds oblivious of police warnings or speed restrictions【56】their journey comes to a conclusion. Perhaps one remedy【57】this motorway madness would be better driver education. At present, learner drivers are barred【58】motorways and are thus as far as this kind of driving is【59】, thrown in at the deep end. However, much more efficient policing is required,【60】it is the duty of the police not only to enforce the law but also to protect the general public from its own foolishness. (41)
A.
for
B.
after
C.
to
D.
by
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【单选题】Which is true according to the passage?
A.
The shop was on the Second Road.
B.
The boy was 18 years old.
C.
The boy was not in high spirit.
D.
The writer entered the shop by chance.
【单选题】What did the passage try to tell us?
A.
The boy was too shy to ask the girl out.
B.
The boy loved music so much.
C.
There was love at first sight.
D.
Both the boy and the girl missed their love.
【单选题】It remains to be seen what effects the new educational reform will _________ students.
A.
make on
B.
take on
C.
have on
D.
get on
【简答题】caused the accident remains unknown.(That/What)A. What
【简答题】函数z=2x 2 +y 2 在点(1,1)沿该点的梯度方向的方向导数为______
【单选题】三极管发射结正偏、集电结反偏时处于( )状态 。
A.
饱和
B.
截止
C.
放大
D.
微导通
【简答题】PNP 型晶体三极管工作放大区时,发射结和集电结的工作状态() A、 发射结和集电结都正偏 B 、发射结和集电结都反偏 C 、发射结正偏、集电结反偏 D 、发射结反偏、集电结正偏
【判断题】三极管发射结正偏、集电结反偏时,三极管放大电流。
A.
正确
B.
错误
【简答题】Both she and I ____watching TV when he came back. (was, were)
【单选题】函数 在某点的梯度方向为函数在该点的( )。
A.
上升方向
B.
最速上升方向
C.
最速下降方向
D.
下降方向
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