皮皮学，免费搜题
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【单选题】
应用最广泛、结构最简单的电缆线芯绞合形式是()。A.
简单规则圆形绞合
B.
简单规则扇形绞合
C.
简单规则椭圆形绞合
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举一反三
【单选题】My parents _____eat junk food, because it’s bad for our health.
A.
often
B.
never
C.
sometimes
D.
Always
【单选题】Our teacher tells us ______ in bed. It's bad for our eyes. [ ]
A.
not read
B.
not to read
C.
read
D.
to read
【单选题】Let's not ___ books in the sun. It's bad for our eyes. [ ]
A.
read
B.
reading
C.
look
D.
look at
【单选题】Our teacher told us _______ too much time surfing the internet. It's bad for our health. [ ]
A.
not to cost
B.
not to spend
C.
not to pay
D.
not to take
【简答题】棒球内场各垒间距离为_______米，投手板的前沿中心至本垒板尖角的距离为18.44米。
【单选题】----Smoking should ____________ in school. ----I agree. It’s bad for our health.
A.
be allowed
B.
not allow
C.
allow
D.
not be allowed
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