【句子】根据默默无闻的小说制作优秀影片在美国由来已久，已经成为传统。【解析】1)adj.杰出的；优秀的；极好的She would have made an excellent teacher.她本可以成为杰出的教师。2)常见词...

Once upon a time there were four little Rabbits, and their names were—Flopsy,Mopsy,Cotton-tail,and Peter. They lived with their Mother in a sand-bank, underneath the root of a ve...

 

 

1.2.3 相反数 知识点1 相反数的概念 知识提要：只有符号不同的两个数叫做互为相反数． －1的相反数是1． 1．2 017的相反数是(B) A．2 017                    B．－2 017 C...