抽检样品标志为(),其中印有“取样证”的字样。
A.蓝色
B.白色
C.绿色
D.黄色
参考答案:B
以下不在运营费用范畴的是()。
A.保险费
B.付息还本
C.公共设施的维护
D.法律费用
His report was so exciting that it was ____ interrupted by applause(掌声). [ ]
A. constantly
B. constant
C. seldom
D. never