【单选题】矩阵(A+B)的秩()矩阵A的秩加矩阵B的秩。
【简答题】一个公司有536台电脑,组成一个对等网,在最大可能不浪费主机号的前提下,子网掩码应该设置为____。
【多选题】In Eurocurrency Markets,three broad classes of financial items are involved
A.
bank deposits and credits,for example dollar deposits heldatEurope- an banks(i.E.Eurodollardeposits)
B.
bank loans,for example Euro loans held at American banks
C.
primary securities in the form of Eurobonds and Euronotes
D.
derivative securities such as foreign currency options(e.g. on the ecu) or futures on eurodollar instruments
【判断题】收到前欠的应收账款编制的凭证为:借记“银行存款”、贷记“应收账款” ( )
【单选题】当前国际贸易货物运输中灵活性最大的运输方式是( )。
【判断题】在正式场合中,握手遵循“尊者优先、女士优先”的原则。