What is the dialogue mostly about?
A. how to generate revenue
B. the importance of proper cash levels
C. how to keep from being bought out
D. how to avoid a zero cash balance
查看答案
The woman thinks they should
A. buy out a competitor.
B. invest to generate revenue.
C. operate with a zero cash balance.
D. prepare for unexpected expenses.
平面一般力系的三力矩式平衡方程的附加使用条件是( )。
A. 二个矩心连线与投影轴垂直
B. 二个矩心连线与投影轴不垂直
C. 投影轴通边一个矩心
D. 三个矩心不共线
平面一般力系的平衡方程数为( C )。
A. 1个
B. 2个
C. 3个
D. 4个