【单选题】道不可坐论,德不能空谈。于实处用力,从知行合一上下功夫。是要求大学生要( )
【判断题】道不可坐论,德不能空谈。于实处用力,从知行合一上下功夫,核心价值观才能内化为人们的精神追求,外化为人们的自觉行动。
【单选题】某企业资产总额为100万元,当发生下列三笔经济业务后:(1)向银行借款10万元存入银行;(2)用银行存款偿还应付账款5万元;(3)收回应收账款2万元存入银行。其权益总计为( )元
【单选题】A monopolistically competitive firm:
A.
tries to differentiate its product from the products of competitors.
B.
faces a perfectly elastic demand curve for its product.
C.
unlike a perfectly competitive firm, is able to earn positive economic profits in the long run.
D.
is always a retail establishment.
【简答题】细胞膜是系统的边界,它的功能是_______________________。