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【简答题】
____策略是指学生为了完成具体学习任务而采取的步骤和方法;
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举一反三
【单选题】Our journey was slow because the train stopped______at different villages.
A.
constantly
B.
continuously
C.
continually
D.
gradually
【单选题】关系R和S如下图所示,属性集合{A,B}上的分量{a,b}在R中的象集是____________。 R A B C D a b c d a b e f a b h k b d e f b d d l c k c d c k e f
A.
{{c,d},{e,f}}
B.
{{c,d},{e,f},{h,k}}
C.
{{c,d},{e,f},{h,k},{d,l}}
D.
{{c,d}}
【简答题】《》对泰坦尼克号报道的当天头版头条刊登的是 内容。
【单选题】Our journey was slow because the bus stopped at different villages________. [ ]
A.
likely
B.
gradually
C.
constantly
D.
regularly
【单选题】Our journey was slow because the bus stopped at different villages________．
A.
normally
B.
gradually
C.
constantly
D.
regularly
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