2010年4月19日，“2010平板电脑峰会”在北京举行，中国惠普副总裁陈国维演讲时表示，将来平板电脑可能会取代传统电脑，起码移动设备会成为业界主流，销量会远远超过传统PC。这表明 [ ]
①世界是普遍发展的物质世界
②发展的实质是新事物的产生和旧事物的灭亡
③人类科技进步助推社会发展
④事物发展前途是光明的，道路是曲折的
A．①②
B．③④
C．①③
D．②④
答案：A
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| We are middle school 1____________. We are 2____________ Grade 7. Kate, Mike, Lucy 3____________ I are in Class One. Kate 4____________ eleven. Mike and Lucy are twelve. I am thirteen. We have a new 5____________. In it you can 6____________ 40 desks and chairs. A blackboard, a clock and a map are on the wall. The map is a 7____________ China. 8____________ brooms are behind the door. On a desk you can see some pens. The red 9____________ is Kate's. Look at the clock. It's four o'clock. It's time 10____________ play games.
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