党的各级纪律检查委员会的主要任务是：维护党的章程和其他党内法规，检查党的路线、方针、政策和决议的执行情况，协助党的委员会加强党风建设和组织协调反腐败工作。(判断题)
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A ship in harbor is safe， but that’s not ______ ships aw built for.
A. what
B. whom
C. why
D. when
We can I earn from Paragraph 2 that the An family ______.
A. started a business in 1975
B. left Vietnam without much money
C. bought a restaurant in San Francisco
D. opened a sandwich shop in Los Angeles
材料题请点击右侧查看材料问题
A. love
B. lack
C. prevention
D. division
④区域大规模农业生产活动对当地原始自然环境的影响主要是
A. 温室气体减少
B. 森林覆盖率减小
C. 入湖泥沙量减低
D. 草原生产量减低
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