diff --git a/out/artifacts/MathSystemTogether_jar/MathSystemTogether.jar b/out/artifacts/MathSystemTogether_jar/MathSystemTogether.jar
index a2f2977..9a2372c 100644
Binary files a/out/artifacts/MathSystemTogether_jar/MathSystemTogether.jar and b/out/artifacts/MathSystemTogether_jar/MathSystemTogether.jar differ
diff --git a/src/main/java/com/example/mathsystemtogether/ChoiceQuestionGenerator.java b/src/main/java/com/example/mathsystemtogether/ChoiceQuestionGenerator.java
index f3b646b..299282a 100644
--- a/src/main/java/com/example/mathsystemtogether/ChoiceQuestionGenerator.java
+++ b/src/main/java/com/example/mathsystemtogether/ChoiceQuestionGenerator.java
@@ -402,45 +402,6 @@ private double calculateTrigFunction(String function, int angle) {
             default: return 0;
         }
     }
-    
-    /**
-     * 确保除法运算都能除尽
-     */
-    private void ensureDivisibleOperations(List<Integer> operands, List<String> operators) {
-        for (int i = 0; i < operators.size(); i++) {
-            if (operators.get(i).equals("/")) {
-                int dividend = operands.get(i);
-                int divisor = operands.get(i + 1);
-                
-                // 如果除不尽，调整被除数使其能被除数整除
-                if (dividend % divisor != 0) {
-                    // 生成一个能被除数整除的新被除数
-                    int newDividend = divisor * (1 + random.nextInt(MAX_OPERAND_VALUE / divisor));
-                    operands.set(i, newDividend);
-                }
-            }
-        }
-    }
-    
-    /**
-     * 确保除法运算都能除尽（针对Double类型）
-     */
-    private void ensureDivisibleOperationsForDouble(List<Double> operands, List<String> operators) {
-        for (int i = 0; i < operators.size(); i++) {
-            if (operators.get(i).equals("/")) {
-                double dividend = operands.get(i);
-                double divisor = operands.get(i + 1);
-                
-                // 只对整数部分进行除法检查
-                if (divisor != 0 && dividend % divisor != 0) {
-                    // 生成一个能被除数整除的新被除数
-                    int intDivisor = (int) divisor;
-                    int newDividend = intDivisor * (1 + random.nextInt(MAX_OPERAND_VALUE / intDivisor));
-                    operands.set(i, (double) newDividend);
-                }
-            }
-        }
-    }
 
 
     /**
@@ -515,9 +476,6 @@ private double calculateTrigFunction(String function, int angle) {
             operators.add(selectedOp);
         }
         
-        // 确保除法运算都能除尽
-        ensureDivisibleOperations(operands, operators);
-        
         // 构建表达式字符串
         expression.append(operands.get(0));
         for (int i = 0; i < operatorCount; i++) {
@@ -582,7 +540,7 @@ private double calculateTrigFunction(String function, int angle) {
     }
 
     /**
-     * 生成包含除法的复合运算表达式（确保除法都能除尽）
+     * 生成包含除法的复合运算表达式
      */
     private String[] generateCompoundExpressionWithDivision(int operatorCount) {
         StringBuilder expression = new StringBuilder();
@@ -600,9 +558,6 @@ private double calculateTrigFunction(String function, int angle) {
             operators.add(availableOps[random.nextInt(availableOps.length)]);
         }
         
-        // 确保除法运算都能除尽
-        ensureDivisibleOperations(operands, operators);
-        
         // 构建表达式字符串
         expression.append(operands.get(0));
         for (int i = 0; i < operatorCount; i++) {
@@ -686,9 +641,6 @@ private double calculateTrigFunction(String function, int angle) {
             operators.add(selectedOp);
         }
         
-        // 确保除法运算都能除尽（只对整数运算进行检查）
-        ensureDivisibleOperationsForDouble(operands, operators);
-        
         // 构建表达式字符串
         expression.append(operands.get(0).intValue());
         for (int i = 0; i < operatorCount; i++) {
@@ -856,9 +808,7 @@ private double calculateTrigFunction(String function, int angle) {
                 ops.remove(i);
                 i--; // 调整索引
             } else if (ops.get(i).equals("√")) {
-                // 计算开方结果
-                int result = (int) Math.sqrt(numbers.get(i));
-                numbers.set(i, result);
+                // 开方运算已经在生成时处理了
                 ops.remove(i);
                 i--; // 调整索引
             }
diff --git a/src/main/java/com/example/mathsystemtogether/RegisterController.java b/src/main/java/com/example/mathsystemtogether/RegisterController.java
index 3e72a8b..4614100 100644
--- a/src/main/java/com/example/mathsystemtogether/RegisterController.java
+++ b/src/main/java/com/example/mathsystemtogether/RegisterController.java
@@ -68,7 +68,7 @@ public class RegisterController {
      * 设置父窗口引用
      * @param parentStage 父窗口
      */
-    public void setParentStage(javafx.stage.Stage parentStage) {
+    public void setParentStage(Stage parentStage) {
         this.parentStage = parentStage;
     }
 
diff --git a/src/main/java/module-info.java b/src/main/java/module-info.java
index 4761223..9c6a55e 100644
--- a/src/main/java/module-info.java
+++ b/src/main/java/module-info.java
@@ -1,10 +1,10 @@
 module com.example.mathsystemtogether {
     requires javafx.controls;
     requires javafx.fxml;
-    requires transitive javafx.graphics;
     requires jakarta.mail;
     requires jakarta.activation;
 
+
     opens com.example.mathsystemtogether to javafx.fxml;
     exports com.example.mathsystemtogether;
 }
\ No newline at end of file