2014年2月7日第22届冬季奥运会在俄罗斯黑海沿岸城市索契举办。图示为局部区域图和气候资料图。完成下列各题。

每年4﹣7月是我区手足口病高发季节，手足口病是由多种肠道病毒引起的传染病，最常见的是柯萨奇病毒A16型及肠道病毒71型，多发生于5岁以下儿童，表现口痛、厌食、低热、手、足、口腔等部位出现小疱疹或小溃疡，严重时甚至死亡．据悉，截至4月11日，广西已累计报告手足口病病例17345例，死亡27例．目前尚无疫苗．托幼单位每日进行晨检，发现可疑患儿时，采取及时送诊、居家休息的措施；对患儿所用的物品要立即进行消毒处理；有些幼儿园放假十天，并发放了《致家长的一封信》和宣传资料进行解释．

（1）肠道病毒是手足口病的____ ．

（2）从传染病的环节来看，患儿所用的物品属于____ ．

从预防传染病的措施看，幼儿园放假十天，属于____ ．

（3）若手足口病疫苗研发成功，注射的疫苗从免疫学角度分析属于____ ，这种免疫类型是____ 

下列关于H₂O和H₂O₂关系的说法中，正确的是                        

根据短文内容，回答下列问题。

    It's December. It's snowy and the weather is really cold in the north of China. You can see many children playing with snow（雪）. Some of them are making snowmen. Some are skating on the river, because it's so cold that the water in the river freezes(结冰). It's a white world. How beautiful! But in Australia now, the weather（天气）is hot. Many people go swimming in the sea. (大海) They are having a good time. Jim and his friends are playing soccer near the sea. The sunny weather is really cool to them. They want to swim after playing soccer.

    Why are they swimming in December? It is winter, isn't it? Yes, it is in China. But it isn't in Australia. That's because we, Chinese and Australians, have different seasons(季节) in a year.

依次填入句中横线处的词语，正确的一项是 （     ）
①文学艺术创造来源于生活，作家塑造的人物形象，往往是以现实生活中的真实人物为       创作而形成的。
②一辆运载盐酸的货车在高速公路上发生侧翻事故，交通、消防部门的人员迅速赶赴出事现场，并做出了紧急       。
③保险丝是电路安全的报警器，当电路里的电流超过允许值时，保险丝就会       ，从而切断电源，保障线路和电器的安全。