经常使用在道路、广场和施工现场照明的灯是()。
A.高压水银灯
B.卤钨灯
C.荧光灯
D.白炽灯
参考答案：A
如果要在整个报表的最后输出信息，需要设置
A．页面页脚
B．报表页脚
C．页面页眉
D．报表页眉
It was very late at night, he still went on . [ ]
A. works
B. worked
C. working
D. work
