【简答题】每个人都能做,但是不能两个人一起做的事情是什么?
【简答题】设有4件工作分派给4个人来做,每项工作只能由一个人来做,每个人只能做一项工作。表6.7为各人对各项工作所具有的工作效率,请适当安排人选,使总效率最大。
【单选题】She _____ on a new novel ever since this summer and it is supposed to _____ at the beginning of 2011. [ ]
A.
had worked; be published
B.
had been working; have published
D.
has been working; be published
【单选题】“读书无疑须有疑,有疑定要求无疑。无疑本自有疑始,有疑方能达无疑。”这句话是谁说的?
【简答题】行扫描时,当输出扫描电平后读___端口电平。(填行或列)