"Randomized experiments are the gold standard for causal inference, but they are not always feasible."
Intelligent mining is the key to high-quality development in the coal industry.
Innovation in fisheries management is key to balancing economic growth and environmental stewardship.
成人的幸福与否是与他在儿童时期所过的那种生活紧密相连。
The most important thing is to be true to yourself.
科学教会我们谦卑,因为每一次发现都揭示了我们无知之广。