计算(﹣m2n)2的结果是( ).
m4n2
.My cousin keeps the photo____he can see ite veryday, as it always reminds him of
His college days in Florida.
A.which
B.where
C.whether
D.when
某客户可透支300元,另一可透支600元的全球通客户加入其帐户统一支付,则合并后的帐户就高得到()的透支额度。
A.300
B.400
C.500
D.600