下列四种调查：
①调查某班学生的身高情况；
②调查某城市的空气质量；
③调查某风景区全年的游客流量；
④调查某批汽车的抗撞击能力．
其中适合用全面调查方式的是（   ）

    The weather in England changes quickly. You m____ experience four seasons in a day. In spring the sun often shines. The weather is getting warmer and you can hope for more s____ days. Summer and autumn are the best time in a year. It is s____ in winter.

    January and February are the coldest m____ of the year, while the warmest are often July and August. The average t____ for winter is about 4.5℃, and for summer it is about 15.5℃.

    C____ to England, it is d____ in summer in China. Sometimes people depend on groundwater(地下水) to water plants. And in winter it is more f____ than that in England. But in China, the weather in spring or autumn is often p____. It's the best time for foreign tourists to v____ China.