若矩阵A是B的相似矩阵，则矩阵A+E（E是单位矩阵）的秩是（）。
A．0
B．1
C．2
D．3
参考答案：B
用所给词的适当形式填空。
1. When is _____ (sally) birthday party?
2. December is the _____ (twelve) month of a year.
3. Mary's birthday is August _____ (eight).
4. Look at the photos of these famous _____ (people).
5. There are twenty _____ (class) in our school.
6. How _____ (many) food do you like to have?
7. Does your friend like _____ (watch ) TV?
8. What _____ (be) your family name?
9. Cindy _____ (have) a new blue sweater.
10. My parents _____ (want) a computer.
Sam is __________ at Chinese than Jim.
A. good B. well C. better
A是B的相似矩阵，则矩阵A+E（E是单位矩阵）的秩是（）。
A是B的相似矩阵，则矩阵A+E（E是单位矩阵）的秩是（）。