关于里面是怎样连接的,同学们展开了如下讨论,请在正确的说法后面打√,错误的打×。
王明:1和2之间是通路。 ____
张强:那3和4也是通路。____
李华:1和3之间是断路。____
程平:1和4之间是通路。____
王明:2和3之间也应该是通路。____
张强:2和4之间肯定是断路。 ____
Hello! My name is Peter. I am a student. I often have busy days. I ____ at 6:30 in the morning. I ____ at home. Then I ____ at 7:10. I____ at 7:30. I ____ at 11:45. In the afternoon, we ____ class. After school, I ____ with my friends. In the evening, I ____ or ____ . I____ at 9:00. This is my day.
如图是植物根尖模式图,有关叙述正确的是( )
已知△ABC∽△DEF,且相似比为2:3,则△ABC与△DEF的对应高之比为( )