what和what's的区别：中文意思不同、用法不同、侧重点不同。what作为代词，含义有什么、无论什么、多么等，可用来引导主语从句，表语从句，宾语从句或同位语从句；what's作为常用的口语形式，含义为是什么、什么是，常用来引导一个问句。一、what的含义及用法介绍 what作为关系代词时，意为什么;…的...
13 They had to kill their work animals for food and began to walk out of the valley. As they left, one woman looked back and said, "Good-bye, death valley." 14 A.Slowly, they ran out of food. B.Death Valley has a long history. C.The name has never been changed. D.Death ...