假定某国经济目前的均衡收入为7500亿元，如果政府把收入提高到8400亿元，在边际消费倾向为0.9的情况下，需要增加政府支出（    ）。

(单选题)企业发行债券时，当债券的票面利率等于市场利率时，应选择的发行方式是（ ）。 (单选题)According to the author, which of the following is TRUE abou (单选题)Why does the author believe that the surging sales of e-book (单选题)It can be learned that the trend of e-books ( ). (单选题)According to the passage, the reason why the author opposes (单选题)What can be inferred from Paragraph One? ( ) (单选题)What does the author intend to express by mentioning “Amazon (单选题)Net purists are most worried that ( ). (单选题)Pointcast Network is most probably ( ). (单选题)Established business partners are preferred in Web business