【简答题】压焓图中临界点K和x=0、x=1两条线将区域分为三部分,请说明各区代表的意义。
【简答题】附图中实线为载有电流I的导线,它由三部分组成:MN部分为1/4圆周,圆心为O,半径为R,其余两部分为伸向无限远的两个直线段.求O点的磁场B.
【判断题】短期融资券起源于商品或劳务交易过程中的商业票据,但在发展过程中逐渐脱离了商品或劳务的交易过程,成为单纯的筹资工具。
【单选题】挤出口型板的厚度越大,胶料的挤出变形( )。
【简答题】He was _______out of the army because of the wounds he receive.
【多选题】For what did he receive the Nobel Prize?
B.
being a Doctor in the field of physics
C.
being industrious in his work
D.
discovery of the law of the photoelectric effect
【单选题】According to Nick, why did he receive the money?
A.
The bank made an error. They gave him the money by mistake.
B.
He agreed to sit out an important game.
C.
He agreed to a business deal.