企业是以（）为目的的经济组织。A、销售 B、服务 C、生产产品 D、盈利

I often quarrel about my mother over whether I can watch TV after school. She holds view that senior three students have to make fully use of every minute to work hard at their lessons. It seems to me that once I am allowed to do that, I’ll unable to control myself and forget all about my study. She also thinks it is bad for my eye. But I really can’t accept her ideas. In my opinion, watch TV can set my mind at rest after a day’s hard works. Besides, it is important for us to know what had happened both at home and at abroad. Thus, we shouldn’t be forbidden to watch TV.

已知数列2004，2005，1，-2004，-2005，…，这个数列的特点是从第二项起，每一项都等于它的前后两项之和，则这个数列的前2004项之和S₂₀₀₄等于（    ）

法律是一种特殊的行为规则，其最主要的特征是( )。

A．由国家制定或认可

B．对全体社会成员具有普遍约束力

C．靠国家强制力保证实施

D．以规定权利和义务为内容

委员会应当坚持（）、（）、报告工作制度、请示报告制度。