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【单选题】
You can't go out and play ______ you've done your homework. [ ]A.
when
B.
since
C.
while
D.
until
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皮皮学刷刷变学霸
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【多选题】蹲姿礼仪要求有( )
A.
弯腰捡拾物品时可以臀部向后撅起
B.
蹲礼分交叉式和高低式两种
C.
女士无论采用哪种蹲姿，都要将腿靠紧臀部向下
D.
蹲姿最好采取两膝一高一低的姿式
E.
在孩子面前蹲下与他交谈，会使孩子感到亲切
【单选题】A: Why, its eight oclock already. B: Im surprised at_____being so late.
A.
it
B.
its
C.
it is
D.
it's
【简答题】Why is science so important? How does science affect your daily life?
【单选题】'Finagle' is not a word that most people associate with science. One reason why science is so respected these days is that the image of the scientist is of one who dispassionately collects data in an ...
A.
It is an important factor that must be included in scientific research.
B.
It is a tendency to use collected data to produce desired results.
C.
It is a tendency to interpret the data in one's favour.
D.
It is a factor which, if handled appropriately, will help Settle controversy,
【单选题】'_______ do you like science?' '_______ it's interesting.' [ ]
A.
Why, Because
B.
What, So
C.
When, But
D.
How, Because
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