正确认识经济社会发展状况，全面分析我们面临的国内外形势，是制定规划的前提和( )。
A．基础 B．保障C．依据 D．作用
参考答案：C
根据句子意思和首字母，写出恰当的单词。
小题1:It’s 12:00. I am very h__________. I am going to eat a lot.
小题2:Be q__________. We can’t talk in the library.
小题3:We should arrive at school on time. Don’t be l__________ for school.
小题4:The boys are very young but they are very c____________.
小题5:I am short but my brother is very t__________.
什么是调速汽门的重叠度？
