信号发出后如有紧急情况,可随时发出()信号。
A.下放
B.停车
C.提升
参考答案:B
We don’t need to do extra work this evening. The day’s work was almost ______ now.
A.at the end
B.at an end
C.at one end
D.at our end
( )是指以公开竞价的形式,将特定物品或者财产权利转让给最高应价者的买卖方式。
A.拍卖
B.招标
C.投标
D.竞价