—— 请按键盘 空白键 开始游戏 ——

未来能源结构将是多元化的,煤炭行业需要找准自己的定位。
A novel should be a book of questions, not a book of answers.
Don’t stop when you’re tired. Stop when you’re done.
The best investment you can make is in yourself.
The study of black holes has revolutionized our understanding of space and time.