题干

如果等腰三角形的底角为50°,那么它的顶角为(  )

A:50°

B:60°

C:70°

D:80°

上一题 下一题 0.0难度 选择题 更新时间:2018-10-26 01:44:25

答案(点此获取答案解析)

D

同类题1

根据句短文理解,完成下列各题。

       A group of people asked this question to a group 4-to-8-year-old children. “What does love mean?” The answers were surprising. The children would answer like they did below.

  “When my grandmother hurt her knees (膝盖), she couldn't bent (弯腰) over and paint her toenails (脚指甲) any more. So my grandfather does it for her all the time, even when his hands hurt too. That's love.”

                                                                                                                                                                   Rebecca–age 8

 “Love is when someone hurts you. And you get so mad but you don't shout at them because you know it would hurt her feelings.”

                                                                                                                                                                  Samantha–age 6

  “Love is what makes you smile when you're tired.”

                                                                                                                                                                  Terri–age 4

 “I let my big sister pick on (捉弄) me because my mum says she only picks on me because she loves me. So I pick on my baby sister because I love her.”

                                                                                                                                                                  Bethany–age 4

  “I know my older sister loves me because she gives me all her old clothes and has to go out and buy new clothes.”

                                                                                                                                                                  Lauren–age 4

   “Love is when Mommy gives Daddy the best piece of chicken.”

                                                                                                                                                                   Elaine–age 5

   “My mommy loves me more than anybody. You don’t see anyone else kissing me to sleep at night.”

                                                                                                                                                                  Clear–age 5

   “You really shouldn't say ‘I love you’ unless you mean it. But if you mean it, you should say it a lot. People forget.”

                                                                                                                                                                  Jessica–age 8

同类题3

阅读短文,回答文后问题。

雪浪花(节选)

    凉秋八月,天气分外清爽。我有时爱坐在海边礁石上,望着潮涨潮落,云起云飞。月亮圆的时候,正涨大潮。瞧那茫茫无边的大海上,滚滚滔滔,一浪高似一浪,撞到礁石上,唰地卷起几丈高的雪浪花,猛力冲激着海边的礁石。那礁石满身都是深沟浅窝,坑坑坎坎的,倒像是柔软的面团,不知叫谁捏弄成这种怪模怪样。

    几个年轻的姑娘赤着脚,提着裙子,嘻嘻哈哈逗着浪花玩。想必是初次认识海,一只海鸥,两片贝壳,她们也感到新奇有趣。奇形怪状的礁石自然逃不出她们好奇的眼睛,你听她们议论起来了:礁石硬得跟铁差不多,怎么会变成这样子?是天生的,还是錾子凿的,还是怎的?

    “是叫浪花咬的。”一个欢乐的声音从背后插进来。说话的人是个上年纪的渔民,从刚拢岸的渔船跨下来,脱下黄油布衣裤,从从容容晾到礁石上。

    有个姑娘听了笑起来:“浪花也没有牙,还会咬?怎么溅到我身上,痛都不痛,咬我一口多有趣。”

    老渔民慢条斯理地说:“咬你一口就该哭了。别看浪花小,无数浪花集到一起,心齐,又有耐性,就是这样咬啊咬的,咬上几百年,几千年,几万年,哪怕是铁打的江山,也能叫它变个样儿。姑娘们,你们信不信?”

    说得妙,里面又含着多么深的人情世故。我不禁对那渔民望了几眼。老渔民长得高大结实,留着一把花白胡子。瞧他那眉目神气,就像秋天的高空一样,又清明,又深沉。老渔民说完话,动手收拾着满船烂银似的新鲜鱼儿。