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【简答题】
若曲线 C上的点M 沿着曲线无限地远离原点时,点 M 与某一直线 L 的距离趋于 0, 则称直线 L 为曲线C 的( )。
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】倍速链输送线如何调整链条的张紧力？
【单选题】Kate met a lot of problems _____ she was going over her lessons.
A.
before
B.
as soon as
C.
untill
D.
while
【单选题】Was it in the reading-room ______ you were reading a magazine _____ Kate met you? [ ]
A.
where, that
B.
that, who
C.
that, where
D.
which, that
【单选题】Kate and Lenny ______ and kissed each other when they met again after ten years.
A.
clutched
B.
grasped
C.
embraced
D.
compressed
【单选题】Kate met a lot of problems _____ she was going over her lessons. [ ]
A.
before
B.
as soon as
C.
until
D.
while
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