A.into
B.up
C.at
D.about
A.Call my Ad
B.Call Ada for m
C.Call me Ad
D.Call Ada to m
E.
A.have owed
B.am owed
C.owe
D.owed
设A是一个n阶矩阵。并且存在一个正整数m使得Am=Q。
(i)证明I-A可逆,并且(I-A)-1=I+A+...+Am-1。
(i)求矩阵
的逆矩阵。
A.so am I
B.so I am
C.neither is mine
D.mine is neither
A.This is Lily
B.I am Lily
C.Lily here, at your service
D.I am Lily from the Front Office