某班10人,其中女生3人,今派5人去参加竞赛,至少去一名女生的方法共有________种.
不考虑限制条件,则有种,若考虑无女生参加,则有种,故符合题意的种数有种.
按要求完成句子。
1. Kate is taller than Ruth.(改为同义句)
Ruth is ________ Kate.
2. My home is half a kilometer from the school. His home is two kilometers from the school.(合并为一句)
His home is ________from the school than my home.
3. Is that Tara?(作否定回答)
No, ________ ________.
4. He has longer hair than Sam.(改为否定句)
He_________ ________ longer hair than Sam.
渗滤晕