diff --git a/2207/MySQL数据库操作综合练习题答案.md b/2207/MySQL数据库操作综合练习题答案.md
index ac8420e..b9919f1 100644
--- a/2207/MySQL数据库操作综合练习题答案.md
+++ b/2207/MySQL数据库操作综合练习题答案.md
@@ -88,6 +88,8 @@ WHERE death IS NOT NULL;
 TRUNCATE pet;
 ```
 
+---
+
 ### 练习三
 
 ![image-20250315225417117](https://yp.smallkun.cn/markdown/image-20250315225417117.png!compress)
@@ -177,6 +179,8 @@ VALUES
 
 ![image-20250315225441802](https://yp.smallkun.cn/markdown/image-20250315225441802.png!compress)
 
+---
+
 ### 练习四
 
 ![image-20250315225803115](https://yp.smallkun.cn/markdown/image-20250315225803115.png!compress)
@@ -191,7 +195,7 @@ VALUES
 ```sql
 ```
 
-
+---
 
 ### 练习五
 
@@ -205,6 +209,8 @@ VALUES
 ```sql
 ```
 
+---
+
 ### 练习六
 
 ![image-20250315230057816](https://yp.smallkun.cn/markdown/image-20250315230057816.png!compress)
@@ -212,6 +218,8 @@ VALUES
 ```sql
 ```
 
+---
+
 ### 练习七
 
 ![image-20250315230113710](https://yp.smallkun.cn/markdown/image-20250315230113710.png!compress)
@@ -221,6 +229,8 @@ VALUES
 ```sql
 ```
 
+---
+
 ### 练习八
 
 ![image-20250315230214156](https://yp.smallkun.cn/markdown/image-20250315230214156.png!compress)