Which do you think might be the proper title for this passage
A. Youth Organization.
B. International Travel.
C. Education Out of School.
D. Summer Holidays.
我们将在某个确定的系统内实行纵向的、自上而下或自下而上的自我监督称之为()
A. 交互监督
B. 自循环监督
C. 交叉监督
D. 系统间监督
Which of the following can best describe the author's attitude toward modern advertising
A. Indifferent.
B. Shocked.
C. Disapproving.
D. Approving.
某零件生产企业的流水线有效工作时间为每日8小时,流水线每生产一件零件需15分钟,则该企业流水线每日的生产能力为( )件。
A. 21
B. 26
C. 32
D. 45