2010版银行承兑汇票的底纹有（）（）的作用.
A.防复印
B.防仿造
C.防涂改
D.防造假
参考答案：A, C
Channel 5, CCTV is ______ special programme. It's about ______ 2008 Olympic Games. [ ]
A. the; /
B. a; a
C. the; the
D. a; the
A．I有=3/2A，Im=3A
B．I有=3A，I有=3A
C．I有= A，I有 A
D．I有3A，Im=6A
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