水果产业要发展,必须从种植源头抓起,品质是生命线。
离散数学和连续数学之间的相互作用是一些最有趣的问题所在。
The worth of a state, in the long run, is the worth of the individuals composing it.
If you don’t try to uncover what is unseen and understand its nature, you will be ill prepared to lead.