如图所示,已知AB=AC,PB=PC,下面的结论:①BE=CE;②AP⊥BC;③AE平

 如图所示,已知AB=AC,PB=PC,下面的结论:①BE=CE;②AP⊥BC;③AE平分∠BEC;④∠PEC=∠PCE,其中正确结论的个数有(      )

 

 

 

 

 

 


A.1个          B.2个        C.3个          D.4个

 

答案

C

解析:略

 

相关题目

当人体饮水不足或体内失水过多时,都会引起细胞外液渗透
当人体饮水不足或体内失水过多时,都会引起细胞外液渗透压升高,下丘脑感受到这种刺激后(    ) A.垂体合成、分泌并释放的抗利尿激素增加 B.
密切了共产党与民主党派的关系,推动了社会主义民主
密切了共产党与民主党派的关系,推动了社会主义民主进程的是 ( ) A.人民代表大会制度                  B.社会主义制度 C.爱国统一战线
       Auckland is the largest city in New Zealand. It has a ___111___of j
       Auckland is the largest city in New Zealand. It has a ___111___of just under a million people and is located on North Island. This seaside city is an important center for business and i
欧洲中世纪的绘画作品中很少留有作者的姓名,但到文艺复
欧洲中世纪的绘画作品中很少留有作者的姓名,但到文艺复兴时期,越来越多的艺术家在自己的作品中留下签名,甚至将自己的形象绘入其中。这反映
A flood occurs(发生)when water is too much. This can happen in many ways. Mo
A flood occurs(发生)when water is too much. This can happen in many ways. Most common is when rivers run out of their banks. Too much rain, a broken dam, ice in the mountains changing into water
在乌克兰问题上,欧盟众多国家决定与美国一起对俄罗斯实
在乌克兰问题上,欧盟众多国家决定与美国一起对俄罗斯实行制裁,以迫使俄罗斯让步,下列有关欧盟的知识点,哪一项是正确的( ) A.欧盟是当今世
下图是某市污水处理的工艺流程示意图: (1)常用的凝聚剂
下图是某市污水处理的工艺流程示意图: (1)常用的凝聚剂可以是                 (任填一种凝聚剂的名称)(2)加入熟石灰的目的是   
Mary worked hard at her lessons day and night and she __________at last. Her te
Mary worked hard at her lessons day and night and she __________at last. Her teacher said it was her hard work that resulted in (促使) her_____. A. successful, success   B. succeed, successful

最新题目