(1)原式=(2)2-22+1
=2-22+1
=3-22;
(2)原式=5+55-255
=455.
2001年苏南五市与广东五市经济发展比较
10城市中,土地面积最大与最小的城市分别是()
A.南京 镇江
B.苏州 镇江
C.苏州 顺德
D.广州 顺德
Questions 6 to 10 are based on the following news.
A. The instant messaging. B. Credit payment through Barclaycard. C. The mobile wallet. D. Ceil-phone toll paying.