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【单选题】
三角带传动中影响传动带疲劳寿命的主要因素是( )应力;在其他条件相同的情况下,带轮直径越( ),寿命就越短。A.
弯曲/大
B.
弯曲/小
C.
离心力/大
D.
紧/小
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举一反三
【单选题】Alexs mansion was named after______.
A.
the house where he was born
B.
the football team that he leads
C.
the football team that he favors
D.
the factory where his father once worked
【单选题】Would you mind ______ down the music? [ ]
A.
not to turn
B.
not turn
C.
turning
D.
to turn
【单选题】The mansion built here last year is another _____ palace in our city.A．childrens’B．of a childC．c
A.
82. The mansion built here last year is another _____ palace in our city. A．childrens’
B.
of a child
C.
child’s
D.
children’s
【简答题】Would you mind if I turn on the fan? (句意不变) Would you mind ______ _______on the fan?
【简答题】Would you mind ' (turn) down the music?
【简答题】Would you mind turn ________ down your radio a little, please?
【简答题】greeting
【简答题】The baby is sleeping. Would you mind ( ) (turn) off the radio?
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