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【单选题】
下列关于矢量数据结构和栅格数据结构说法错误的是( )
A.
栅格结构和矢量结构在实际应用中都有一定的局限性,应根据具体需求、应用目的及特点、软硬件的配置情况来选择数据结构
B.
对于线划地图来说,用矢量数据往往比栅格数据节省空间
C.
将两种数据结构互相转换可以大大提高地理信息系统软件的通用性,栅格转矢量相对简单,而矢量转栅格算法较为复杂
D.
多边形周长、面积或者从一点出发量取半径,在栅格数据结构中比较容易实现
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举一反三
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A.
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B.
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【简答题】给下列的问句选择合适的答语。 (     ) 1. What's he like? (     ) 2. What day is it today? (     ) 3. What's your favourite food? (     ) 4. What do you have on Tuesday? A. Mutton. B. I have English and art. C. He's ...
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