如图中，实线和虚线分别表示等量异种点电荷的电场线和等势线，则下列有关P、Q两点的 发布时间：2017-04-30 22:34 │ 来源：www.tikuol.com 题型：选择题 问题： 如图中，实线和虚线分别表示等量异种点电荷的电场线和等势线，则下列有关P、Q两点的相关说法中正确的是（ ）A．两点的场强等大、反向B．P点电场更强C．两点电势一样高D．Q点的电势较低
题型：选择题 阅读理解。 Tourist Visiting Singapore A group of 68 Australian tourists are staying at a hotel in Singapore. Today is Thursday. Their leader put up this notice in the hotel. Programme for Monday, 21 Julymorning afternoon 8:30 a.m.9:00 a.m.-11:00 a.m. 11:30 a.m.-12:30 p.m. 12:30 P.m.buses leave hotel National Museum or Aquarium Tiger Balm Gardens or Mount Faber Return to hotel by bus1:00 p.m.-2:30 a.m. 3:00 p.m.-4:00 p.m. 4:30 p.m.-5:30 p.m. 6:00 p.m. 7:00 p.m.1unch at hotel Jurong Bird Park or Chinese Gardens Crocodile Farm or East Coast Park Lagoon return to hotel dinner Notes:a) To help us to arrange the buses, please sign up for the above places on the list by this notice. Sign (签名) by 10:00 p.m. on 20th July. b) The buses will leave on time, so please make sure that you are punctual. c) The tours are free.1. Mrs. Johnson wants to go to the National Museum. Then we know that she will Not visit _____. A. Mount Faber B. the AquariumC. the Crocodile farmD. Jurong Bird Park 2. On 21 July, they will leave the hotel room at about _____. A. 8:20 a.m. B. 8:40 a.m. C. 8:55 a.m. D. 9:10 a.m. 3. The last day for showing that a tourist wants to go on the tour is _____. A. Wednesday B. Thursday C. Saturday D. Sunday4. Each tourist will pay _____ for the tour. A. $14. B. $12.20 C. $8.80D. nothing 5. In note(b), 'punctual' means _____. A. happy B. very early C. on timeD. awake 查看答案
题型：选择题 计算下列各题：（每小题4分，共20分）（1） 33+（-32）+7-（-3）（2）(512+23-34)×(-12)（3）-|-32|÷3×（-13）-（-2）3（4）x2+3x2+x2-3x2（5） 2（a2b-2ab2+c）-（2c+3a2b-ab2） 查看答案
