It is Saturday. The Browns are at home. Mrs. Brown is in the kitchen. She is making lunch. Mr. Brown isn't in the living room. He is outside. He is washing his car. The car is new and very beautiful. Jim is playing football with some boys. Where is his sister, Sue? She's watching TV in her bedroom with her friend, Ann.

我国陆地地形分布情况如图。

这个圆表示____，我国盆地占总面积的____ %，从统计图中可以看出____的面积最大，____的面积最小。

下列化学用语书写错误的是（　　）

使小狗建立“铃声﹣唾液分泌”条件反射的适当方法是 （ ）