【判断题】外部不经济的经济活动,其社会成本大于私人成本。
【判断题】刀盘脱困时,允许使用松推进油缸的方式进行刀盘脱困
【判断题】A1单元格为850728,在B1单元格中输入=right(A1,3)返回的结果是28。
【判断题】A1单元格为850728,在B1单元格中输入=mid(A1,3,2)返回的结果是7。
【单选题】We may infer that during the summer holidays______.
A.
few students will stay in the university
B.
no breakfast will be served on weekends
C.
the student newspaper will sell more copies
D.
there will be a concert or a film each Wednesday
【单选题】What will the man most probably do next?
A.
Fill out an application.
B.
Go back to the university to get his I
D.
Take a written exam and an eye exam.
【单选题】在一定时期内,国家发行纸币的数量是由什么决定的