关于我国土地资源构成特点的叙述，正确的是(   )

    Welcome to England! The weather of England often changes. It can be rainy, sunny, cloudy, windy, warm, foggy or cold at any time of year. If it's raining when you get up in the morning, it can be hot and sunny in the afternoon.

    In England, shops are usually open from 9:00 in the morning to 5:30 in the afternoon. On Sundays some shops are open from 10:00 a. m. to 4:00 p. m. But most shops are closed. Banks, museums（博物馆）or other places are open from 10:00 a. m. to 5:00 p. m. You can go to the parks at any time.

    All the cities have buses, trains and taxis（出租车）. People wait in line (排队等候) for buses and they will not be happy if you come to the front from the end of the line. Don't forget that, traffic goes on the left.

Be careful and enjoy your time here.

根据短文内容，完成任务。

As a doctor, have you got ___________ to say about Jack?

将细菌置于有营养的物体上，它会繁殖并形成细菌群（如图）．以下用来检验两种抗生素杀菌效用的对比实验，最适当的分组设计是（  ）