A:《朝花夕拾》
B:《花边文学》
C:《旧事重提》
D:《伪自由谈》
阅读短文,判断正误。
Hello. I am Alice. I am eight. I have a dog. His name is Sam. He is brown. He is very lovely. My mother and I like him. But my father doesn't like him. Sam likes eating meat. I like too.
成吉思汗的功绩主要是( )
一项工程,甲单独做 小时完成,乙单独做 小时完成,则两人一起完成这项工程需要____小时.