There _____ a computer and some books on the desk. [ ]
A. is
B. are
C. be
D. has
答案:A
You’d better ____ football in the street.
A.play
B.not play
C.not to play
D.not playing
创造概念是指设计、执行及控制各种方案,以促使目标群体接纳某些社会观念、主张或做法,概念往往体现在物质价值和精神价值两个层面,概念可以分为( )等。
A.文化概念
B.战略概念
C.区位概念
D.品质概念
E.生活概念