将一电荷量q=﹣2.0×10^﹣6C的电荷从无穷远处移至电场中的A点，克服电场力做功3.0×10^﹣4J，再将电荷从A点移至B点的过程中，电场力做功2.0×10^﹣4J，规定无穷远处的电势能为零．则（   ）

人体的发育分两个阶段：一个是____发育阶段，还有一个是____发育阶段．

Please fill my cup __________ water. Thank you.

写出每组中不是同类的词。

汽车    火车    轮船    车站

____

Tomorrow we will go to Hainan. It's warm there. We will have a special Chinese New Year's Day. Now let's get ready! We need three tickets from Shijiazhuang to Hainan. We don't need winter clothes. I want a beautiful dress. My parents take some T-shirts and shorts. We need to take milk, cakes and fruit. We need three hats. The sun is very hot there. We don't want to turn black. That's all done.

①   ②   ③  ④

⑤   ⑥   ⑦   ⑧

⑨   ⑩   ⑪   ⑫

____