【多选题】作为形式美的点,与几何学里的点不同,它的构成与以下哪些方面有关()
【单选题】Which following option is not the function of an outline?
A.
It helps you make sure that related items are together.
B.
It helps you remember what you want to say.
C.
It helps you make sure the structure of the speech will not collapse.
D.
It helps you finish the speech quicker.
【简答题】Supermarkets are trying out new computers that make shopping carts more intelt (具备智能的). They will help shoppers find cups or toilet soap, and keep a record of the bill. The touch-screen devices (...
【判断题】若某个线性方程组相应的齐次线性方程组只有零解,则该线性方程组 无解 .