一 I'm glad to hear that.
如图①,锐角△ABC中,分别以AB、AC为边向外作等腰直角△ABE和等腰直角△ACD , 使AE=AB , AD=AC , ∠BAE=∠CAD=90°,连接BD , CE , 试猜想BD与CE的大小关系,不需要证明.
如图②,锐角△ABC中,分别以AB、AC为边向外作等腰△ABE和等腰△ACD , 使AE=AB , AD=AC , ∠BAE=∠CAD , 连接BD、CE , 试猜想BD与CE的大小关系,并说明理由.
如图③,在△ABC中,∠ACB=45°,以AB为直角边,A为直角顶点向外作等腰直角△ABD , 连接CD , 若AC= ,BC=3,则CD长为.
①江阔水深
②水能资源丰富
③水流湍急
④航运便利
请运用所学知识分析这些同学的认识。
(A reporter is asking Bert some questions about the earthquake last month.)
A: Bert, do you remember the earthquake last month?
B: Yes, I do.
A: What were you doing at that time?
B: I was doing some shopping in a shopping center.
A:
B: I tried my best to run out to the street.
A: But you know, it's dangerous to run during the earthquake.
B: But I know little about how to protect myself in an earthquake.
A: You should read some information about that online.
B: Very afraid.
A: Well, Bert, thanks for talking with me.
B: My pleasure.
A. Yes, I see. B. I will never forget it. C. Did you shout for help? D: Then what did you do? E. Many other people were also running quickly. F. I think we should learn more about earthquakes. G. By the way, how did you feel when you found yourself in danger? |
—Don't worry. Your aunt is to look after your pet.
①参加听证会是行使公民民主权利。
②行使这项民主权利的意义在于。
两幅图片分别体现的优秀品质是:
①漫画一: 漫画二:
②请任选其中一幅图片,说一说怎样培养这种优秀品质?