苯的急性毒性作用表现（） A.周围神经系统毒性 B.中枢神经系统毒性 C.心血管系统 发布时间：2017-06-02 06:05 │ 来源：www.tikuol.com 题型：单项选择题 A1/A2型题 问题： 苯的急性毒性作用表现（）A.周围神经系统毒性B.中枢神经系统毒性C.心血管系统毒性D.泌尿系统毒性E.内分泌系统毒性
题型：单项选择题 A1/A2型题 阅读理解。 In the recent years, people have shown their thanks, invitations, or hopes and wishes, or something else in different kinds of cards. Here are some cards below. Dear Mr Li: Happy Teachers' Day! We're all very happy to be your students. Best wishes to you. Wang NanDear Mark, Thanks for looking after my little dog while I was away on vacation. I took many photos in the mountains and I'll show them to you this weekend. TomDear Kate, Wish you every success in your midexams next Tuesday. We miss you very much. Lucy INVITATION TO LILY'S PARTY It is a birthday party for Lily! Time: Sunday, June. 16th and 6:00 am Place: Lily's house, Center Street. Come here and have fun.1. ______ must be a teacher in a school. [ ]A. Mr. Li B. Ben C. Lucy D. Mark 2. Tom expresses his ______ in his card.. [ ]A. hopes B. wishes C. thanksD. invitation 3. Kate is going to ______ next Tuesday. [ ]A. take midexams B. have a birthday party C. go on a vacation D. look after the dog. 4. Lily's good friends are going to her birthday party ______. [ ]A. this Saturday B. next Tuesday C. on October 10th D. on June 16th 5. ______ has a dog. [ ]A. Kate B. WangNan C. Mark D. Tom 查看答案
题型：单项选择题 A1/A2型题 具有竞争力关系的两地之间的距离为5000m，其中甲地人口35万人，乙地人口46万人，则根据莱利零售引力法则，两地商圈的分界点位置距离甲地( )km。A．2160B．2840C．2329.46D．2670.54 查看答案