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【单选题】
The writer think people take part in dangerous sports because ______.A.
they want to get away from modem life
B.
they have more free time
C.
they like adventures
D.
they are not quite pleased with modem life
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【单选题】Not until all the fish died in the lake __________ how serious the pollution was.
A.
did the villagers realize
B.
the villagers realized
C.
realized the villagers
D.
do the villagers realize
【单选题】It was not until all the fish died in the river_____the villagers realized the serious pollution.
A.
where
B.
that
C.
what
D.
which
【单选题】Not until all the fish die in the river ____ how serious the pollution was. [ ]
A.
did the villagers realize
B.
the villagers realized
C.
the villagers realized
D.
didn't the villagers realize
【简答题】电动式EPS是利用直流电动机作为动力源，电子控制单元根据转向参数和（）等信号，控制电动机（）的大小和方向。
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