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【单选题】
In English class, our teacher often creates an environment __________ we are given the opportunity to solve problems ourselves.A.
where
B.
when
C.
which
D.
that
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反馈参考答案：
举一反三
【单选题】—How long _______ in Shanghai? —I will be there attending a conference and giving a speech, which will take about 3 days.
A.
have you stayed
B.
are you staying
C.
do you stay
D.
did you stay
【单选题】“公差与配合”标准中，定义的基本偏差是（ ）
A.
在完工零件上实际测得的尺寸。
B.
用于确定公差等级的。
C.
用于确定公差大小的。
D.
用于确定公差带相对零线位置的。
【单选题】Vet gives teens the following advice except ______.
A.
take things slow
B.
hope everything will be perfect
C.
make decisions for yourself
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