应用在轮船导航系统上的计算机是( )。
A.特殊用途计算机
B.一般用途计算机
C.超级计算机
D.并行计算机
参考答案:A
解析:应用在轮船导航系统上的计算机属于特殊用途计算机。
U. S. Treasury securities face several risks to varying degrees. Generally speaking, rank the following risks that an investor in a 5 percent coupon, 25-year, off-the-run U. S. Treasury bond, issued after 1984, would face. Order them from left to right with the least likely risk first through the most likely risk faced by the investor last. 1=liquidity risk. 2=prepayment risk. 3=default risk. 4=interest rate risk.()
A. 1, 2, 3, 4.
B. 2, 3, 1, 4.
C. 4, 3, 1, 2.
沿炭化室内高度上任何一点的压力,均低于燃烧室的压力。