评标委员会由招标代理机构熟悉相关业务的代表和不少于成员总数（）的技术、经济等专家组成 发布时间：2017-04-07 01:32 │ 来源：www.tikuol.com 题型：单项选择题 问题： 评标委员会由招标代理机构熟悉相关业务的代表和不少于成员总数（）的技术、经济等专家组成，成员人数为5人以上单数。A．1/3B．2/3C．1/2D．3/4
题型：单项选择题 设椭圆C：x2a2+y2b2=1（a＞b＞0）过点M(2，1)，且左焦点为F1(-2，0)（Ⅰ）求椭圆C的方程；（Ⅱ）当过点P（4，1）的动直线l与椭圆C相交与两不同点A，B时，在线段AB上取点Q，满足|AP|•|QB|=|AQ|•|PB|，证明：点Q总在某定直线上． 查看答案
题型：单项选择题 补全对话。A. What happened to him? B. Is there a Chinese festival in June, too?C. Thank you for telling me. D. Yes, you are very smart. E. It sounds very interesting. F. What do you usually do on that day in China? G. What a pity!Nathan: There is a festival in June in our country, it's Father's Day. 1_____ Li Fei: Yes, it's on the fifth day of the fifth lunar (阴历) month. We call it Dragon Boat Festival Nathan: 2_____ Li Fei: We make and eat zongzi and hold dragon boat races. Nathan: 3_____ Why do you celebrate Dragon Boat Festival? Li Fei: Oh, it is a story about Qu Yuan. He lived about two thousand years ago. His job was to give advice to the emperor. But he wasn't trusted and often got punishment. So he jumped into the Miluo River and died. Nathan: 4_____ Was the day that Qu Yuan died on the fifth day of the fifth lunar month in that year? Li Fei: 5_____ From then on, Chinese people began to eat zongzi and have dragon boat races on that day to memorize him. 查看答案