电缆防火涂料的耐火性能是以()作为测试指标的。
A、耐火时间
B、火焰传播比值
C、阻火性
D、炭化高度
参考答案:D
摄影师给全班同学照合影时,从取景框中发现靠边的两位同学没有在框内,则摄影师应将照相机 ( )
A.远离同学,同时镜头往前伸
B.远离同学,同时镜头往后缩
C.靠近同学,同时镜头往前伸
D.靠近同学,同时镜头往后缩
There were many beautiful names in front of the judgers,of which only Tom’s was
the names of the great building.
A.marked with
B.chosen as
C.designed as
D.printed with