题目

What is mental health?Mental health is an expression we use every day, so it might surprise you that the term ‘mental health’ is frequently misunderstood. 【1】According to the WHO, however, mental health is “a state of well-being in which every individual realizes his or her own potential, can deal with the normal stresses of life, can work fruitfully, and is able to make a contribution to her or his community.”【2】To make things a bit clearer, some experts have tried coming up with different terms to explain the difference between ‘mental health’ and ‘mental health conditi随地球自转，一天中太阳东升西落，太阳经过某地天空的最高点时为此地的“地方时间”12点，因此，不同经线上具有不同的“地方时间”．两个地区“地方时间”之间的差称为这两个地区的时差．右图表示同一时刻的韩国首尔时间和北京时间，两地时差为整数．（1）下表是同一时刻的北京和首尔的时间，请填写完整．北京时间7：30首尔时间12：15（2）设北京时间为x（时），首尔时间为y（时），0≤x≤12时，求y关于x的函数表达式．