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【简答题】
线虫的排泄系统有两种类型,一种是()型,一种是()型。它们都是由()胚层细胞形成,因此均属于()型。
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【简答题】引下线宜采用________或________,宜优先采用________。
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【单选题】Do you know how to make a costume _________paper? [ ]
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out
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【简答题】引下线宜采用圆钢或扁钢,宜优先采用圆钢。圆钢直径不应小于()。扁钢截面不应小于(),其厚度不应小于()。
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【简答题】What do American students try to do in class? They try to ______ in working out problems by themselves.
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【单选题】—I'd like to do somle volunteer work, but I'm not sure what I should do. —You ______ give out food at the food bank. [ ]
A.
should
B.
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【简答题】How do the Wertmans work out their problems?
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【简答题】引下线宜采用()或(),宜优先采用()。
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【简答题】引下线宜采用圆钢或扁钢,宜优先采用()。
查看完整题目与答案
【单选题】Do you know how to make a costume _____ paper? [ ]
A.
for
B.
out
C.
out of
D.
as
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【单选题】Let us go out and play football, ? [ ]
A.
will you
B.
shall we
C.
do you
D.
do we
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【单选题】Do you know how to make a costume _________paper? [ ]
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【简答题】引下线宜采用()或(),宜优先采用()。
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【简答题】引下线宜采用圆钢或扁钢,宜优先采用()。
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【单选题】Do you know how to make a costume _____ paper? [ ]
A.
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B.
out
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A.
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