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搜题
【多选题】
为防止染毒,青少年应做到“五个拒绝”,以下属于“五个拒绝”的是( )A.
拒绝毒友
B.
拒绝交友
C.
拒绝诱惑
D.
拒绝尝试
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【简答题】不能被人体吸收的糖类包括粗纤维、果胶等,总称为“()”
【单选题】Teaching is supposed to be a professional activity requiring long and complicated training as well as official certification. The act of teaching is looked upon as a flow of knowledge from a higher so...
A.
The author believes that it is not difficult to be a good teacher.
B.
The author believes that every person has the potential to be a teacher.
C.
The author believes that teaching is a professional activity requiring special training.
D.
The author believes that teaching is the flow of knowledge from a higher source to an empty container.
【简答题】淡水生物有哪些生态类群?各有何特点?
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【简答题】不能被吸收的糖类，包括粗纤维，果胶等，总称()。