2. 外语
  3. The main difference between cordless phones and cellphones is that cordless phones can only operate in a limited range. CDMA an

The main difference between cordless phones and cellphones is that cordless phones can only operate in a limited range. CDMA an

admin2012-08-10  73
问题 The main difference between cordless phones and cellphones is that cordless phones can only operate in a limited range.
CDMA and GSM are the two main network services available in Australia.
选项 A、Y
B、N
C、NG
答案C
解析 CDMA and GSM are the two main network services available in Australia．根据专有名词 CDMA，GSM以及地名Australia定位，找到小标题Standardized Technology范围末句，扫描后未发现有 Australia，则正确答案NG。
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大学英语四级

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