Developing Paragraph1. Fact and statistic 事实与数据 a. 可以客观证实的事情 b. 数字事实 The sun rises in the east. Oil and water do not mix. There are twenty-five students in the class. A snake is a strange animal. It walks on its ribs and it smells with its tongue. Since its teeth are sharp like needles and not good for chewing, it swallows its food whole. TS:2 WebEx Confidential
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