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侯晶晶，是中国第一位“坐在轮椅上的女博士”，现为南京师范大学教师。二十年前，她因双腿瘫痪，被迫辍学。她毅然迎战生理上、心理上和学业上的三重考验，在家坚持自学10年，以优异的成绩完成硕士和博士学业。留校任教后，她勤奋工作，在教学和科研上取得了骄人业绩。同时，她热心社会公益事业，尽力回报党和社会的培育之恩。曾被评为“江苏省自强模范”、“江苏省十大杰出青年”和“全国自强模范”。2007年她又获得第六届中国十大女杰荣誉称号。

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根据材料内容，选择正确答案。   

    Some people in the West like to stay at home during their weekends. They work in the garden, visit their friends, read books or watch television. Many families take their lunch to a park or somewhere far from the city. They like to eat under some trees or near a nice lake. If they live near the sea, they often go to the seaside. There they can fish, swim or enjoy the sunshine.

    Some people in the West like travelling. They think travelling and outdoor activities are interesting and exciting. They work hard to save money, but their main purpose is to travel.

    Most Western students often make use of their weekends to camp. There are thousands of interesting camp bases in Western countries. They can swim, go fishing, attend lectures, and take part in many other activities there. It can help them quest_ for the secrets of nature and teach them how to be self ­reliant(自立的).

已知以下信息：① A的核磁共振氢谱表明其只有一种化学环境的氢；

②R—CH＝CH₂ R—CH₂CH₂OH；③化合物F苯环上的一氯代物只有两种；④通常在同一个碳原子上连有两个羟基不稳定，易脱水形成羰基。

请回答下列问题：

读如图所示的“岩浆岩形成示意图”，回答问题。

以下气温类型中，非洲缺少的是   (    )