中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.
如图，在Rt△ABC中，∠BAC=90°，E，F分别是BC，AC的中点，延长BA到点D，使AD=
AB,连接DE,DF,下列结论中不正确的是（ ）
| A: EF=AD |
| B: EF∥AB |
| C: AF与DE互相平分 |
| D: AF与DE互相垂直 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+6L+e5o6lRUbjgIFBRe+8jDwvcD4=
- 提示2：PHA+6K+B5Zub6L655b2iQUVGROaYr+W5s+ihjOWbm+i+ueW9ojwvcD4=
- 答案：RA==
PGRpdj7or4HmmI7vvJrov57mjqVFRu+8jEFFLjwvZGl2PjxkaXY+PGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzAwLzU3L3JCQUNGRk1NVWl5UzVMZ0NBQUFuX0VaMHNDQTg4NS5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMDAvNTcvckJBQ0ZGTU1VaXlTNUxnQ0FBQW5fRVowc0NBODg1LnBuZyIgYWx0PSLpnZLmnpzlrabpmaIiIGhlaWdodD0iMTYxIiB3aWR0aD0iMjIyIj48YnI+4oi154K5Re+8jEbliIbliKvkuLpCQ++8jEFD55qE5Lit54K577yMPGJyPuKItEVG4oilQULvvIxFRj08aW1nIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvNDQvckJBQ0UxTU1VaXVBTG4taEFBQUJKQi1MZlFVMTQzLnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yMy80NC9yQkFDRTFNTVVpdUFMbi1oQUFBQkpCLUxmUVUxNDMucG5nIiBoZWlnaHQ9IjQyIiB3aWR0aD0iNyI+QUIsPC9kaXY+PGRpdj7lj4jiiLVBRD08aW1nIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvNDQvckJBQ0UxTU1VaXVBTG4taEFBQUJKQi1MZlFVMTQzLnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yMy80NC9yQkFDRTFNTVVpdUFMbi1oQUFBQkpCLUxmUVUxNDMucG5nIiBoZWlnaHQ9IjQyIiB3aWR0aD0iNyI+QULvvIw8L2Rpdj48ZGl2PuKItEVGPUFELjxicj7lj4jiiLVFRuKIpUFE77yMPGJyPuKItOWbm+i+ueW9okFFRkTmmK/lubPooYzlm5vovrnlvaIuPGJyPuKItEFG5LiOREXkupLnm7jlubPliIYuPGJyPjwvZGl2PjxkaXY+5pWF6YCJRDxicj48L2Rpdj4=
本课配套习题挑战模式2/5
单选题
难度系数：
2.
如图，已知：AB∥CD，BE⊥AD，垂足为点E，CF⊥AD，垂足为点F，并且AE=DF. 可得
①∠ABE=∠DCF；②BE=CF；③BE∥CF；④△AEB≌△DFC；⑤四边形BECF是平行四边形，其中成立的结论有（ ）
| A: ①②⑤ |
| B: ①③④⑤ |
| C: ②③④⑤ |
| D: ①②③④⑤ |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5Yip55SoQVNB6K+B4pazQUVC4omM4pazREZDPC9wPg==
- 提示2：PHA+6YCa6L+H5YWo562J5LiJ6KeS5b2i77yI4pazQUVC4omM4pazREZD77yJ55qE5a+55bqU6L6555u4562J6K+B5b6XQkU9Q0Y8L3A+
- 提示3：PHA+5Zyo5ZCM5LiA5bmz6Z2i5YaF77yM5ZCM5Z6C55u05LqO5ZCM5LiA5p2h55u057q/55qE5Lik5p2h55u057q/55u45LqS5bmz6KGM4oCd6K+B5b6XQkXiiKVDRjwvcD4=
- 答案：RA==
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
本课配套习题挑战模式3/5
单选题
难度系数：
3.
如图，在△ABC中，∠ACB=90°，BC的垂直平分线交BC于D，交AB于点E，F在DE上，并且AF=CE. 下列结论中不正确的是（ ）
| A: AF=AE |
| B: AC=AE |
| C: ∠FAE=∠AEC |
| D: 四边形ACEF是平行四边形 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5bey55+l5LqGQUY9RUPvvIzlj6rpnIDor4HmmI5BRuKIpUVD5Y2z5Y+v77ybPC9wPg==
- 提示2：PHA+REXlnoLnm7TlubPliIZCQ++8jOaYk+efpURF5piv4pazQUJD55qE5Lit5L2N57q/77yM5YiZRkXiiKVBQ++8jEJFPUVBPUNFPUFG77ybPC9wPg==
- 提示3：PHA+4pazQUZF44CB4pazQUVD6YO95piv562J6IWw5LiJ6KeS5b2i77yM5Y+v5b6X4oigRj3iiKA1PeKIoDE94oigMu+8jOWNs+KIoEZBRT3iiKBBRUM8L3A+
- 答案：Qg==
PGRpdj7or4HmmI7vvJriiLVEReWeguebtOW5s+WIhkJD77yMPGJyPuKItEJEPUNE77yM5LiURUTiiKVBQzxicj7iiLRFROaYr+KWs0FCQ+eahOS4reS9jee6vy48YnI+4oi0QkU9QUXvvIxGROKIpUFDLjxicj5SdOKWs0FCQ+S4re+8jENF5piv5pac6L65QULnmoTkuK3nur/vvIw8YnI+4oi0Q0U9QUU9QUYuPGJyPuKItOKIoEY94oigNT3iiKAxPeKIoDIuPGJyPuKItOKIoEZBRT3iiKBBRUMuPGJyPuKItEFG4oilRUMuPGJyPuWPiOKItUFGPUVD77yMPGJyPuKItOWbm+i+ueW9okFDRUbmmK/lubPooYzlm5vovrnlvaIuPC9kaXY+
本课配套习题挑战模式4/5
单选题
难度系数：
4.
明为测量池塘的宽度，在池塘的两侧A，B分别引两条直线AC，BC，相交于点C，在BC上分别取点E，G，使BE=CG，再分别过点E，G作 EF∥AB，GH∥AB，交AC于点F，H，测出EF=10m，GH=4m（如图）. 小明就得出了结论：池塘的宽AB为（ ）m。
| A: 16 |
| B: 15 |
| C: 14 |
| D: 13 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+6L+H54K5ReS9nEVE4oilQUPvvIzkuqRBQuS6jueCuUTvvJs8L3A+
- 提示2：PHA+6K+B5piO5Zub6L655b2iQURFRuaYr+W5s+ihjOWbm+i+ueW9ou+8mzwvcD4=
- 提示3：PHA+6K+B5piO4pazQkRF4omM4pazR0hD44CCPC9wPg==
- 答案：Qw==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.
如图，已知△ABC是等边三角形，D、E分别在边BC、AC上，且CD=CE，连接DE并延长至点F，使EF=AE，连接AF、BE和CF. 下列结论正确的是（ ）
① △BDE≌△FEC；②△BCE≌△FDC；③△ABE≌△ACF；④四边形ABDF是平行四边形。
| A: ①②③④ |
| B: ①④ |
| C: ②④ |
| D: ③④ |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5Yik5a6a5Lik5Liq5LiJ6KeS5b2i5YWo562J5pe277yM5b+F6aG75pyJ6L6555qE5Y+C5LiO77yM5omA5Lul5q2k6aKY55qE5YWz6ZSu5piv5om+5Ye655u4562J55qE6L6577ybPC9wPg==
- 提示2：PHA+55Sx5YWo562J6K+B5piOQULiiKVERu+8jEJE4oilQUbvvJs8L3A+
- 提示3：PHA+5Lik57uE5a+56L655YiG5Yir5bmz6KGM55qE5Zub6L655b2i5piv5bmz6KGM5Zub6L655b2i44CCPC9wPg==
- 答案：QQ==
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
