根据句意和汉语注释，写出单词的正确形式。（1）Guangdong is in the ____ (north) part of the city（2）She danced so ____ (beauty) that everyone clapped their hands.（3）Look! Their____ (wife) are waving to them（4）Do you think noise ____ (pollute) is a terrible problem?
下列基因型中最可能不是二倍体生物配子的是
宋朝时，江南地区农业发展较快的原因有（ ）
①南方战乱少
②许多中原人南迁
③自然条件优越
④那里原来就有先进的生产技术
