93.4G is the fourth generation wireless technology adopted by the （ ） and carriers around the world.[1分]
A.IEEE
B.ISO
C.ITU
D.ETO
参考答案：C
94.Nobody had predicted the scale of impact of （ ） communications and that it world be one of the largest businesses in the history of mankind with and immense impact on all economies.[1分]
A.microwave
B.satellite
C.cell
D.cellular
参考答案：D
95.Deploying enhanced broadband services over existing network infrastructure （ ）in increase of the network complexity and therefore,extra
expenses on network management and maintenance.[1分]
A.results
B.resulted
C.resulting
D.result
参考答案：B
96.The approaching 4G mobile communication systems are projected to （90） still remaining problems of 3G systems and to provide （91） new
services ,from high-quality voice to high-definition video to high data-rate wireless channels.[1分]
A.solve
B.solving
C.reduce
D.increase
参考答案：A
97.The approaching 4G mobile communication systems are projected to （90） still remaining problems of 3G systems and to provide （91） new
services ,from high-quality voice to high-definition video to high data-rate wireless channels.[1分]
A.all kinds of
B.all sorts of
C.a kind of
D.a wide varieyt of
参考答案：D