【单选题】Which of the statements concerning children's fare is true?
A.
Children under two are charged 10% of the normal fare under any circumstances.
B.
The second child under two accompanying the same adult is charged 50% of the normal fare.
C.
A 12-year-old is charged 50% of the normal fare.
D.
Unaccompanied children are charged the normal fare.
【单选题】Under the pressure and stress from their careers and children, adult children tend to ______.
A.
push their parents to group living
B.
depend on their retired parents
C.
visit their parents less and less often
D.
seek for psychological consultation
【单选题】Children under six are not ______to school except those of extraordialy intelligence.
【单选题】指车辆实际的运输周转量与汽车在总行程中额定载质(客)量得以充分利用所能完成的运输周转量之比,是
【多选题】风险承受能力为激进型的投资者,热衷于在高风险中博取高收益,不怕本金损失,适合投资股票、外汇、数字货币等。比特币作为热门的数字货币,以下( )属于比特币的特点。
A.
比特币完全依赖p2p网络,无发行中心,所以外部无法关闭它
C.
比特币挖矿机就是用于赚取比特币的计算机,这类计算机一般配有专业的挖矿芯片、显卡
D.
在网络中,用户在电脑上运行比特币客户端软件,这样的电脑称为一个节点