智能化开采是煤炭行业高质量发展的关键。
未来的农业必须建立在今天的教训之上。
美国政府是一个明确的政府,仅限于特定的目标。它不像州政府,其权力更为广泛。
在黑暗中,两件事对所有男人都是共同的:恐惧和对光明的渴望。
The most effective economic organizations are those that are able to combine the efficiency of large-scale operations with the flexibility and innovation of small-scale ones.