如图所示,直线l∥m,将含有45°角的三角形板ABC的直角顶点C放在直线m上.若∠1=25°,则∠2的度数为____.
已知sin6°=a,sin36°=b,则sin26°=( )
根据句子意思及所给的词首字母或汉语提示,完成下列单词。 ——E____ me, Are you Mr. Green?——Yes, I am. Jane and Amy are s____ . Their mom is a teacher. Maria and Jane b____ have long hair. I have a friend. He is____ (二十) years old. His____ (手) are big.
读“我国某海滨小城功能区分布示意图”,完成下题.