In relation to the Labour Contract Law of China:

(a) Explain the term and the purpose of a non-competition clause in a labour contract. (4 marks)

治疗风痰上扰之眩晕，最宜选用的方剂是（）

A.三子养亲汤

B.半夏白术天麻汤

C.苓甘五味姜辛汤

D.温胆汤

E.定痫丸