已知∠1=17°18′, ∠2=17.18°, ∠3=17.3°,下列说法正确的是( ) A. ∠1=∠2 B. ∠1=∠3 C. ∠1<∠2 D. ∠2>∠3 查看更多

 

题目列表(包括答案和解析)

(16分)阅读以下材料,结合所学的知识回答问题。
材料一  中世纪的欧洲的意识形态的所有领域都是基督教会独统天下的,他们用神学解释一切,难以提供启发民智和解放思想的理论和知识。在这种情况下,启蒙思想家就只有从非基督教统治的遥远的东方文明国家即中国那里汲取完全不同于欧洲气质的文化中合乎他们需要的理论和知识。明清之际,程朱理学被欧洲的耶稣会士用轮船运往17—18世纪的欧洲,在那里曾经形成过100年的中国文化热,许多思想家对中国文化表现出浓厚的兴趣。如法国的伏尔泰认为,儒学不是宗教;中国的考试制度使官吏职位人人皆可争取,欧洲应加以采用。
——雅创教育网引自《儒家学说在欧洲的传播及影响》
材料二 华东师范大学历史系教授许纪霖的博文写道:“我到联合国大厦参观时,就看到一块大幅宣传,上面用世界上各种语言和文字,表明了一个大家都愿意遵守的最低伦理准则:中文用的是孔老夫子那句名言:‘已所不欲,勿施于人’。”联合国大厦三楼大厅确有一幅用马赛克镶嵌而成的彩色大型壁画,壁画主题叫“黄金法则”:Do unto others, as you would have them do unto you(“你不想人家那样对待你, 你也不要那样对待别人”)。
——引自《联合国的人际关系“黄金法则”》
(1)根据材料一,结合法国历史分析法国启蒙思想家们极力推崇“中国文化”的目的有哪
些?(6分)
(2)儒家“已所不欲,勿施于人”的理念与联合国传达的思想有何相同之处?在具体实施上有何不同?(6分)
(3)材料二中“黄金法则”在我国外交政策阐释中的最准确体现是什么?(4分)

查看答案和解析>>

为探究植物细胞膜的透性,某同学以红甜菜根(液泡中含有花青素)进行下列实验:
A.将不同切片放在不同温度的蒸馏水中处理1分钟后取出。
B.再分别放在清水中浸泡1小时而获得不同的切片浸出液。
C.测量这些溶液的花青素吸光度,得结果如下图。

请回答以下问题:
(1)上述实验操作步骤的叙述存在着一个明显的不足,没有遵循实验设计的    原则。请你对上述实验中的不准确的操作重新进行叙述:            
(2)由上图中的曲线你可以得出的结论是                    
(3)已知物质A能促进细胞膜上载体的活性。有人认为:经过不同温度的处理是影响了细胞膜上运载花青素的载体的活性。请你借助上述材料设计实验证明该观点是否正确。
材料用具:略。
实验步骤:
                                                                   
                                                                  
                                                                   
(2)预测结果及结论:
                                                                   
                                                                   

查看答案和解析>>

根据Jim’s Family Tree,在横线上填入正确的单词。

Jim’s Family Tree

  I 1. a friend.   2. name is Jim. There are(有) eight(八个) people(人) in his 3. .

His grandparents have two sons, his father and his 4. . His parents have two 5. and two 6. .   7.    8. Jim, Susan, Henry and Jane. So Jim has two 9. and a 10. . Jim loves his family very much. They love him, too. He has a big and good family.

11.         

12.         

13.        

14.          

15.        

16.        

17.         

18.         

19.         

20.        

 

查看答案和解析>>

Cu的化合物在生活及科研中有重要作用,不同反应可制得不同状态的Cu2O
(1)科学研究发现纳米级的Cu2O可作为太阳光分解水的催化剂。
①在加热条件下用液态肼(N2H4)还原新制Cu(OH)2可制备纳米级Cu2O,同时放出N2。当收集的N2体积为3.36L(已换算为标准状况)时,可制备纳米级Cu2O的质量为        

②一定温度下,在2 L密闭容器中加入纳米级Cu2O并通入0.20 mol水蒸气,发生反应:
  ;测得20 min时O2的物质的量为0.0016 mol,则前20 min的反应速率v(H2O)=                  ;该温度下,反应的平衡常数表达式K=                  ;下图表示在t1时刻达到平衡后,只改变一个条件又达到平衡的不同时段内,H2的浓度随时间变化的情况,则t1时平衡的移动方向为      ,t2时改变的条件可能为              ;若以K1、K2、K3分别表示t1时刻起改变条件的三个时间段内的平衡常数,t3时刻没有加入或减少体系中的任何物质,则K1、K2、K3的关系为                
(2)已知:ΔH=-293kJ·mol-1           
ΔH=-221kJ·mol-1
请写出用足量炭粉还原CuO(s)制备Cu2O(s)的热化学方程式        
(3)用电解法也可制备Cu2O。原理如右上图所示,则阳极电极反应可以表示为        

查看答案和解析>>

Now more and more people like talking about something that they are interested in. Here is a page from an Internet Forum (论坛). Some people are discussing who is a better singer.

Internet Forum

Writer

Time

Topic: Who’s a better singer, Andy Lau or Jacky Cheung?

Lucy

1-17-2012

2:45 p.m.

Some people say Jacky Cheung is the best Chinese singer. I don’t think so! Andy Lau is the best. I went to his concert last year. It was so hard to believe, I almost cried! OK, I did cry. That’s because Andy Lau is so handsome!

Anita

1-17-2012

4:38 p.m.

I don’t agree at all. Andy Lau sounds like every other singer. His voice is nothing special. However, Jacky Cheung’s is different from others’, and his songs are so romantic!

Tom

1-17-2012

8:55 p.m.

I think they are about the same. But Jacky Cheung is really a better actor. I’ve seen almost all of his movies. Remember the one that he played the lead role of an airplane pilot in, and his plane hit a hill. I love that movie!

Peter

1-18-2012

10:17 a.m.

I also think Jacky Cheung is a better singer, I prefer his Cantonese(粤语) songs. Maybe they sound better because Cantonese is his first language.

Anita

1-18-2012

12:47 p.m.

I agree. Jacky Cheung’s Cantonese songs are better than his Mandarin(普通话) songs though I still like all his songs.

 

1.Who likes Andy Lau best?

A.Lucy             B.Anita             C.Tom              D.Peter

2.Who think(s) Jacky Cheung a better singer ?

A.Anita             B.Peter             C.Tom              D.Anita and Peter

3.Which of the following is TRUE?

A.Nobody likes Jacky Cheung’s movies.

B.Jacky Cheung is a good singer and actor.

C.Lucy has never seen an Andy Lau’s concert.

D.Anita thinks Andy Lau’s voice is more special than Jacky Cheung’s.

 

查看答案和解析>>


同步练习册答案