某生物兴趣小组的同学为探究植物的生命活动，设计了以下实验装置．请据图分析回答下列问题．

下列说法正确的是（    ）

阅读材料，回答下列问题。  

材料   “中体西用”后来久被指为包庇封建，其实，那个时候的中国，天下滔滔，多的是泥古而顽梗的士人。在封建主义充斥的天地里，欲破启锢闭，引入若干资本主义文化，除了“中体西用”还不可能提出另一种更好的宗旨。如果没有“中体”作为前提，“西用”无所依托，它在中国是进不了门，落不了户的。  

——陈旭麓《近代中国社会的新陈代谢》  

指出材料中陈旭麓评价“中体西用”遵循的原则是什么？按照这一原则，任选下表中的两种观点进行评价

Canada Day

      Since 1982, July 1st has been officially known as Canada Day. Canadians of all ages take part in this festival across the country.
　　Canada Day is the year's biggest national party. In many towns and cities, the government organizes a lot of events, often outdoors. These include parades（游行）, concerts, festivals, firework displays and ceremonies for new Canadian citizens（公民）. The celebrations often have a patriotic mood. Canada's national flag, a symbol for Canada Day, can be seen everywhere and a lot of people paint their faces red and white, which are Canada's national colors. The celebrations in Ottawa, Canada's capital city, are especially grand and exciting.
　　In the province of Quebec, many home rentals（租赁）start on July 1st and last for exactly one year, and many people in Quebec spend Canada Day moving from one house to another. So in Quebec, Canada Day is also known as Moving Day.
　　Many organizations, businesses and stores are closed this day. Only some bookstores, ho spitals and gas stations may be open. Post offices are closed, too. As Canada Day falls in the Canadian summer holiday period, all schools are closed as well. In some areas, special services are provided for large events. The concerts, parades and festivals may cause some traffic jams.