Update app.py

app.py

@@ -163,7 +163,7 @@ def generate_math_questions(grade, term, qtype="Unspecified", num_questions=10):
     # 使用 InferenceClient 呼叫 API 模型產生新題目
     completion = client.chat.completions.create(
         # model="mistralai/Mistral-7B-Instruct-v0.3",
-        model="qwen-qwq-32b",
+        model="gemma2-9b-it",
         # model="mistralai/Mistral-Nemo-Instruct-2407", 
         messages=messages,
         max_tokens=500