历史的发展具有一定的内在联系。下列史实的搭配，不具有直接因果联系的是（  ）

    My cousin Sandy is1English girl. Her2name is White. She is 12. The girl is3. In her room, her books and tape player4in the bookcase. Her pencil box is on the5. Her ruler is on the desk, too. And a set 6 keys are in her pencil box. A baseball is under the desk,7 it's not Sandy's. It's her brother8. Sandy has a computer. 9 on the table. There is a photo on the wall. Two girls are in the photo. Do you know10the two girls are? Well, they are Sandy's good friends, Mary and Anna.

如图所示的甲、乙两个剂可能是装置中，胶头滴管中吸入某种液体，平底烧瓶中充入（或放入）另一种物质，挤压胶头滴管加入液体，一段时间后两装置中的气球都明显胀大。则滴管和烧瓶中所用试

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如图所示，实线是某电场中的电场线，虚线是一个带负电的粒子仅在电场力作用下的运动轨迹，若带电粒子是从a处运动到b处，以下判断正确的是（   ）

读两级地区略图，回答跨经度最大的大洲和大洋分别是（  ）