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【单选题】
无舵雪橇的起源地是哪儿?
A.
瑞士
B.
挪威
C.
纽约
题目标签：
起源地
雪橇
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【简答题】Fat and shy, Ben Saunders was the last kid in his class picked for any sports team ' Football, tennis, cricket - anything with a round ball．I was useless,' he says now with a laugh．But back then he wa...
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【简答题】A. known B. idea C. feel Phrases: A. but it may 1 like forever B. a person may have no 2 what is wrong C. what is 3 as panic disorder A panic attack is a sudden feeling of terror. U...
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【单选题】How Americans Celebrate Christmas Christmas is America’’ s most popular holiday. Some people will attend church and observe Christmas as the birthday of Christ. For others, Christmas is just a day of ...
A.
Y
B.
N
C.
NG
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【简答题】如图所示，小孩和雪橇的总质量m=20kg，大人用于水平方向成θ=53°角斜向上的拉力F拉雪橇，使雪橇沿水平地面以v=4m/s速度做均速直线运动．已知雪橇与水平地面的动摩擦因数μ=0.5（sin53°=0.8，cos53°=0.6，取g=10m/s2）求：（1）拉力F的大小；（2）撤去拉力F后雪橇还能滑行的距离．
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【简答题】How Americans Celebrate Christmas Christmas is America’’ s most popular holiday. Some people will attend church and observe Christmas as the birthday of Christ. For others, Christmas is just a day of ...
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【单选题】A. many B. choose C. think of D. ways of Phrases: A. 1 only one language B. 2 any reason not to C. in 3 different ways D. the most boring 4 seeing the world I think every lang...
A.
what
B.
that
C.
which
D.
how
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【单选题】茶的起源地是
A.
日本
B.
斯里兰卡
C.
中国
D.
印度
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【多选题】雪橇项目包括（）。
A.
俯式冰橇
B.
有舵雪橇
C.
无舵雪橇
D.
短距离雪橇
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【单选题】有舵雪橇每赛次滑行几次?( )
A.
2次
B.
4次
C.
3次
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【简答题】The Arctic Ice Is Thawing Father Christmas may have to move his "workshop" from the North Pole because global warming is thawing the ice beneath his feet and his reindeers" feet as well. His "worksho...
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