正确答案: C
春秋
题目:我国铁农具开始出现于
解析:C
查看原题查看所有试题
学习资料的答案和解析:
[单选题]At school most of his teachers ______ the author.
were cold to B. didn’t notice
[单选题]10. The beef is __________dear. Let-s not buy .
much too ,too much
[单选题]When do you have history?—_______10:00.
At
解析:1.C 【解析】表示“在(几点钟)”要用at.
[单选题](二)阅读下面文章,完成11——12 题(7 分)人造的树叶会发电
容易捕捉氧气和氢气并储存它们,以备在没有阳光时使用。