车站喇叭安装采用交叉分布是因为（）
A.喇叭功率不一致
B.喇叭尺寸不一致
C.喇叭形状不一致
D.使两路功率放大器输出成交替分布
参考答案：D
启动Word后可以新建文档的个数是( )。
A．1个
B．4个
C．6个
D．受内存空间的限制
If money comes and goes without good planning, you are likely to live _________. So it is important
for you to ______ at the beginning of a year, budgeting for daily expenditure, budgeting for education
and the like. [ ]
A. on a tight budget; make a budget
B. in a tight budge; budget
C. for a tight budget; have a budget
D. by a budget; plan a budget
