题目

假设你是红星中学高三学生李华。近期你校将在海淀公园举行“阳光长跑”活动，请你给国际部好友Jim写封电子邮件，邀请他参加。内容包括：1）活动信息；2）注意事。注意：1）词数100左右；2）开头和结尾已给出，不计入总词数。DearJim,……Yours,LiHua 答案：Dear Jim, How have you been? Our school will organize an activity called Sunshine Long-distance Run. I wonder if you would like to come. The activity will be held at Haidian Park on May 16th. Students from all grades are welcome to join in. Participants need to gather at the West Gate by 8 am, and the running will start there at 8:20. The running will finish at the East Gate and the total distanc17．下列各组物质中，前者为单质，后者为化合物的是（　　）A．氧气      消毒酒精B．硫      蒸馏水C．氧化铜    硫酸钠D．氮气    食盐水