一件工作,甲、乙合做5小时完成,乙、丙合做4小时完成.如果乙单独做6小时后,甲、 发布时间:2017-05-16 05:20 │ 来源:www.tikuol.com 题型:解答题 问题: 一件工作,甲、乙合做5小时完成,乙、丙合做4小时完成.如果乙单独做6小时后,甲、丙再合做2小时,也刚好完成任务.乙单独做完需要几小时?
题型:解答题 下列词语中加粗的字,每对读音都相同的一组是[ ]A.屋脊/挤压 信笺/歼灭 拮据/终南捷径B.果脯/胸脯 辅弼/复辟 炽热/脍炙人口C.气度/忖度 翩跹/悭吝 供给/自给自足D.龟裂/细菌 倾轧/轧钢 伺候/伺机反扑 查看答案
题型:解答题 根据句意及首字母提示写出所缺单词。1. He was so t _____ the night before his examination that he couldn't sleep.2. Have all the guests been s _____ with food and drinks?3. The new shoes are c _____ to wear. I like them very much.4. — What do you think of the fish? —It t _____ really delicious.5. Some advertisements tell the t _____ and some don't. 查看答案