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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.

阅读《和善开朗人长寿》一文，完成后面小题。
①心理学家说，健康的一半是心理。美国心理学家杰尔曼和他的学生历时70余年对人的心理特征与其寿命进行对照，结果表明，那些少年时代就诚实、守信、责任心强的人，比不够自觉、不够踏实的同龄人要多活2-4年。研究还证明，说谎会给身体带来很大的危害，因为说谎的人心慌意乱，会引起交感神经(植物性神经的一部分)兴奋，造成大脑机能失调，导致兴奋和抑制过程的紊乱，引起神经衰弱等疾病。人在说谎时，体内会分泌一种使心跳加速、呼吸加快、血压上升、白血球数量下降的激素；和善待人、有良好人际关系者，大脑会产生有利于免疫系统的激素，心理学家称之为“快乐素”，这种激素使人心情愉悦，保持心理平衡。
②美国两位医学博士曾对45名医科院校的大学生进行了研究,他们按照心理行为方式,将这些学生分为三组：A组喜争好斗，喜怒无常；B组小心谨慎，文静含蓄；C组活泼开朗，气质平和。经长达30年的观察，发现A组的发病率为77％，而B、C两组的发病率合起来仅为22.7％。上海华东医院也曾对90岁以上的长寿者进行过一系列性格调查，结果表明，B型性格(悠闲、不好强、温和平静、从容不迫、深思熟虑、不慕功名)占83％，A型性格(急躁易怒、缺乏耐心、竞争心理强)只占14％。
③综上所述，和善待人者，往往多为性格开朗者，这种人极易使高级神经活动处于平衡状态，所以，平静和善是我们应该学会的心态，这样才能永葆年轻。

下列图案中，对称轴条数最多的是（　　）

如图是“探究水的沸腾”的实验图象，下列说法不正确的是（　　）