适合考研的代码主要针对考研各科目的复习需求，以下是一些针对不同科目的代码示例：
1. 政治刷题：
```python
import random
questions = [
{"question": "马克思主义哲学的核心观点是什么？", "options": ["物质决定意识", "意识决定物质", "物质和意识辩证统一", "物质和意识相互独立"], "answer": "物质和意识辩证统一"},
{"question": "中国特色社会主义的总任务是什么？", "options": ["全面建设社会主义现代化国家", "全面深化改革", "全面依法治国", "全面从严治党"], "answer": "全面建设社会主义现代化国家"}
]
def quiz(questions):
for q in questions:
print(f"问题：{q['question']}")
for i, option in enumerate(q['options']):
print(f"{i + 1}. {option}")
user_answer = input("请选择正确答案（输入选项编号）：")
if user_answer == str(q['answer']):
print("回答正确！")
else:
print("回答错误，正确答案是：", q['answer'])
quiz(questions)
```
2. 英语刷题：
```python
def english_grammar_quiz():
questions = [
{"question": "Which word best completes this sentence? 'I am not sure if I ___________ to the party last night.', 'went', 'go', 'had gone', 'have gone'"},
{"question": "Choose the correct tense for the sentence: 'They ___________ the book for two years.'", "options": ["have read", "have been reading", "read", "are reading"]}
]
for q in questions:
print(f"问题：{q['question']}")
for i, option in enumerate(q['options']):
print(f"{i + 1}. {option}")
user_answer = input("请选择正确答案（输入选项编号）：")
if user_answer == str(q['answer']):
print("回答正确！")
else:
print("回答错误，正确答案是：", q['answer'])
english_grammar_quiz()
```
3. 数学刷题：
```python
import sympy as sp
def math_quiz():
questions = [
{"question": "Solve for x: 2x + 5 = 19", "solution": "x = 7"},
{"question": "Find the derivative of f(x) = x^2", "solution": "f'(x) = 2x"}
]
for q in questions:
print(f"问题：{q['question']}")
user_answer = input("请输入你的答案：")
if user_answer == q['solution']:
print("回答正确！")
else:
print("回答错误，正确答案是：", q['solution'])
math_quiz()
```
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