读图，完成下题。

    Recently Lindsay hasn't felt herself. She____(be) a really good student, but her grades has fallen since three months ago. This is because she sometimes has trouble ____(pay)attention to her study. She also refuses to talk with teachers and friends. What's worse, she feels____(tire) all the time but has difficulty in falling asleep.____she does is brought to her mother's attention.____, when her mother asks her what happens to her, she just says she feels like ____(cry).

    As a matter of fact, Lindsay is suffering ____clinical depression(临床抑郁症). What is clinical depression? It can be described as a mood which is so low that affects your everyday life____(serious). The first sighs of it in teens are ____(poor) school reports than before, then learning difficulties and staying away from classmates and teachers. If you have these signs, don't worry. It is not so difficult to deal with clinical depression. There are many effective ways, such as medicine,____ (express) of feelings, more exercise and a balanced diet.

设$\alpha$是第二象限角，$P\left(x,4\right)$为其终边上的一点，且$\cos \alpha =\frac{1}{5}x$，则$\tan \alpha =$(   )

国计民生热词之一“舌尖上的中国”备受老百姓的关注，下列做法中，符合食品安全要求的是（  ）