【单选题】有关微生物的描述哪一项是错误的
E.
立克次体属于原核细胞型微生物真菌属于真核细胞型微生物,细菌属于原核细胞型微生物。
【单选题】设A,B为n阶矩阵,且A与B相似,E为n阶单位矩阵,则( ).
【判断题】Viewers usually are willing to spend time reading a navigation page.
【简答题】A. groups B. audiences C. samples D. viewers
【单选题】设A,B为n阶矩阵,且A与B相似,E为n阶单位矩阵,则
B.
λE-A=λE-B. B.A与B有相同的特征值和特征向量.
【简答题】设n阶方阵A与B相似,则必有 (A)λE-A=λE-B. (B)A与B有相同的特征值和相同的特征向量. (C)A和B都相似于同一个对角矩阵. (D)对任意常数t,tE-A与tE-B都相似. [ ]
【单选题】How does the movie influence the viewers?
A.
It led the viewers into a deep thought.
B.
It was a laugh stock to the viewers.
C.
It agreed with the viewers' world view.
D.
It lightened the mood of the viewers and amused them.