题目内容

由于栅格单元中存在多种地物,而数据中常常只记录一个属性值,这会导致属性误差。所以在决定栅格代码时尽量保持地表的真实性,保证最大的信息容量 。

A. 对
B. 错

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矢量结构通过记录坐标的方式来表示点、线、面地理实体

A. 对
B. 错

Busy________ she is,Rita________ two hours every Sunday afternoon to spend with her son.

A. though; sets out
B. as; sets aside
C. as; sets down
D. though; sets off

Ten years later I still keep in touch with my classmates ________ I've never met them.

A. now that
B. so that
C. even though
D. in case

Your parents are always there by you,_____you need them.

A. whenever
B. however
C. whatever
D. whoever

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