【简答题】在附件的基础上,完成两位学号的显示(例170362班的21号,则显示21即可)。 1、设计步骤: 1)下载附件,解压缩到自己的电脑里; 2)打开电气原理图,运行,观察现象; 3)打开工程,查看汇编语言源程序; 4)设计电路图,(参考P1口控制的LED数码管的电路,再增加一个LED数码管,可以用P2口去控制)。 5)打开工程,修改源程序,编译,再次生成可执行程序。 6)打开电路图(HEX可执行程序可...
【简答题】For the matrices A and B below since AB , please give trace (BA)
【多选题】Which of the following equations are true for square matrices A and B?
A.
det(A+B)=det(A)+det(B)
【多选题】Let A be a singular nxn matrix, which of the following statements are true?
C.
Ax=b has infinitely many solution.
D.
for every nxn matrix B, AB is singular.
E.
A can be written by product of some element matrices.
【单选题】对裸露金属表面处理的程序是:去蜡除油( )、涂抹金属转换剂。
【单选题】Which type of pocket square fold is less suited for formal attire?
【简答题】A.hole B.none C.old D.fold
【单选题】I could _____ my bed and _____ my clothes. [ ]
【单选题】The greatest fold of peritoneum is
A.
superior duodenal fold
C.
inferior duodenal fold