1/5单选题
难度：
1.对于两个直角三角形，下列各组条件中，不能判定它们全等的是( )
| A | 一个锐角和一直角边对应相等 |
| B | 斜边和一锐角对应相等 |
| C | 两个锐角对应相等 |
| D | 两条直角边对应相等 |
- 提示1：
- 5LiJ6KeS5b2i5YWo562J5Yik5a6a5pa55rOV
- 提示2：
- UnTkuInop5LlvaLlhajnrYnnmoTliKTlrprmlrnms5U=
正确答案：Qw==
6Kej562U77yaIEEsQSBBU+aIluiAheS4ukFTQSAsQixBQVMsQyxBQUEsRCxTQVM8YnI+5omA5Lul5pegQUFB5Yik5a6a5pa55rOVPGJyPuaVhemAiUM=
2/5单选题
难度：
2.
如图，已知∠A=∠D=90°，要使用“HL”证明△ABC≌△DCB，应添加条件____；
| A | ∠DBC=∠ACB |
| B | AB=CD |
| C | ∠ABC=∠BCD |
| D | 以上都可以 |
- 提示1：
- PHA+5LiJ6KeS5b2i5YWo562J55qE5Yik5a6a5pa55rOVSEw8L3A+
- 提示2：
- PHA+5pac6L655LiO55u06KeS6L655a+55bqU55u4562JPC9wPg==
正确答案：Qg==
PHA+6Kej562U77ya4oi14oigQT3iiKBEPTkwwrDvvIxCQz1DQjxicj7lj4jiiLVBQj1DRDxicj7iiLTilrNBQkPiiYzilrNEQ0LvvIhITO+8iTxicj7mlYXpgIlCPC9wPg==
3/5单选题
难度：
3.
如图，DA⊥AB，CB⊥AB，垂足分别为A、B，BD=AC.根据这些条件不能推出的结论是 ( )
| A | AD∥BC |
| B | AD=BC |
| C | AC平分∠DAB |
| D | ∠C=∠D |
- 提示1：
- PHA+5LiJ6KeS5b2i5YWo562J55qE5Yik5a6aSEw8L3A+
- 提示2：
- PHA+5YWo562J5ZCO5a+55bqU6KeS5a+55bqU6L6555u4562JPC9wPg==
正确答案：Qw==
PHA+6Kej562U77ya4oi1REHiiqVBQu+8jENC4oqlQUI8YnI+4oi0QUTiiKVCQzxicj7lj4jiiLVCRD1BQ++8jEFCPUJBPGJyPuKItDxpbWcgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC9BOC9CMy9yQkFDRkZURjdtT0JOdV9ZQUFBQzJrUEMxbVkwOTIucG5nIiBkYXRhLWNrZS1zYXZlZC1zcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwL0E4L0IzL3JCQUNGRlRGN21PQk51X1lBQUFDMmtQQzFtWTA5Mi5wbmciIGhlaWdodD0iNDIiIHdpZHRoPSIxMzIiPjxicj7iiLRBRD1CQywg4oigQz3iiKBELOKIoENBQj3iiKBEQkE8YnI+5b6X5LiN5Ye6QUPlubPliIbiiKBEQUI8YnI+5pWF6YCJQzwvcD4=
4/5单选题
难度：
4.
如图，CE⊥AB，DF⊥AB，垂足分别为E、F，AC∥DB，且AC=BD，那么Rt△AEC≌Rt△BFC的理由是（）.
| A | SSS |
| B | AAS |
| C | SAS |
| D | HL |
- 提示1：
- PHA+5bmz6KGM57q/55qE5oCn6LSoPC9wPg==
- 提示2：
- PHA+5LiJ6KeS5b2i5YWo562J55qE5Yik5a6a5pa55rOVPC9wPg==
正确答案：Qg==
PHA+6Kej562U77ya4oi1Q0XiiqVBQu+8jERG4oqlQUI8YnI+4oi04oigRT3iiKBGPGJyPuWPiOKItUFD4oilREI8YnI+4oi04oigQT3iiKBCPGJyPuWPiOKItUFDPUJEPGJyPuKItFJ04pazQUVD4omMUnTilrNCRkMoQUFTKTwvcD4=
5/5单选题
难度：
5.
已知，如图，△ABC中，AB=AC，AD是角平分线，BE=CF，则下列说法正确的有几个（）（1）AD平分∠EDF； （2）△EBD≌△FCD； （3）BD=CD； （4）AD⊥BC
| A | 1 |
| B | 2 |
| C | 3 |
| D | 4 |
- 提示1：
- PHA+5LiJ6KeS5b2i5YWo562J55qE5Yik5a6a5pa55rOVPC9wPg==
- 提示2：
- PHA+5LiJ6KeS5b2i5YWo562J5a+55bqU6L655a+55bqU6KeS55u4562JPC9wPg==
正确答案：RA==
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