2、某同学在网上查资料时发现如下一段诗歌:“我是中国人,我那黄河一样粗犷的声音,不光响在联合国的大厦里,大声发表着中国的议论;也响在奥林匹克的赛场上,大声高喊着‘中国得分’,当掌声把五星红旗送上蓝天,我骄傲,我是中国人!”对中国恢复在联合国合法权利的叙述错误的是
A.中国恢复在联合国的席位是大势所趋
B.第三世界力量崛起和支持
C.西方国家完全消除了对华的敌视政策
D.中国国际地位提高
1、我国现在正在全力进行和谐社会的建设,提倡科学发展观,古人也认为“君子和而不同”,含义是“和谐而又不千篇一律,不同而又不互相冲突;和谐以共生共长,不同以
相辅相成”。新中国建立初期成功运用这一思想的外交政策或事件是
①提出和平共处五项原则 ②进行“抗美援朝、保家卫国”的正义战争
③提出求同存异的方针 ④邀请尼克松访华,中美关系缓和
A①②③ B.①③④ C ①③ D.①②③④
32. 解:(1)图中共有5个三角形;··········································· (2分)
(2)△≌△. ·············································· (3分)
∵ △是等边三角形,∴ ∠∠.···················· (4分)
∵ 、、是边、、的中点,
∴AE=AG=CG=CF=AB. ···································································· (6分)
∴ △≌△. ········································································· (7分)
31. (1)如图:
(2)证明即可.
30. 解:(1)略.
(2)证明:∵BC=BD,点E是BC的中点,点F是BD的中点,
∴BE=BF.又∠ABC=∠ABD,AB=AB,∴△ABE≌△ABF.
29. 解:(1)如右图;
(2).
理由:过作于,四边形为矩形,.
,,
.
在和中,
.
.
.
28. 证明:
∴在和中
27. 证明:,,
·················································································································· 1分
在与中 ·········································· 2分
································································ 1分
1分
26. (1) 证明:∵∠A=∠A′ AC=A′C ∠ACM=∠A′CN=900-∠MCN
∴
(2)在Rt△ABC中
∵,∴∠A=900-300=600
又∵,∴∠MCN=300,
∴∠ACM=900-∠MCN=600
∴∠EMB′=∠AMC=∠A=∠MCA=600
∵∠B′=∠B=300
所以三角形MEB′是Rt△MEB′且∠B′=300
所以MB′=2ME
25. 证明:(1)∵CF∥BE∴EBD=FCD
又∵∠BDE=∠CDF,BD=CD
∴△BDE≌△CDF
(2)四边形BECF是平行四边形
由△BDE≌△CDF得ED=FD
∵BD=CD
∴四边形BECF是平行四边形
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com