已知a,b是实数,则“a>2b>3”是“a+b>5”的( ) A.充分不必要条件B 发布时间:2017-04-17 03:44 │ 来源:www.tikuol.com 题型:选择题 问题: 已知a,b是实数,则“a>2b>3”是“a+b>5”的( )A.充分不必要条件B.必要不充分条件C.充分必要条件D.既不充分也不必要条件
题型:选择题 用所给单词的适当形式完成下列句子。1. How many (season) do you know? 2. On a holiday, people (not work). 3. Danny (walk) to school yesterday. 4. We are (put) Christmas things on the tree now. 5. Li Ming teaches (I) to learn Chinese. 查看答案