— Tom, there is going to be a World Cup football match tonight.    

— Thank you for the news. But I won't watch TV ______ I have finished my work. [ ]

A. or

B. while

C. because

D. until

经济总量的基本平衡和经济结构的优化，是宏观调控的（ ）

A．结果和经济原则

B．目标和重要原则

C．目的和法律原则

D．结果和法律原则