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【单选题】
小明的父亲饭后出去散步，从家中走20分钟到一个离家900米的报享看10分钟报纸后，用10分钟返回家里面，图中能表示小明的父亲离家的时间与距离之间关系的图象是（ ）A.
B.
C.
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【简答题】简述城市功能与城市结构的关系
【简答题】简述城市与乡村的关系?
【单选题】Based on the experimental data, which of the following conclusions is the most reasonable one?
A.
Industrial sulfate affects pH levels to a greater extent than naturally occurring sulfate.
B.
Sufficiently warm water temperatures are needed in order for sulfate to affect the pH levels in lake water.
C.
In lake water, pH levels are sensitive to sulfate concentration levels.
D.
In lake water, sulfate concentration levels have little or no impact on pH levels.
【简答题】按照地籍特点和任务划分的地籍可分为哪几类?以及每个类别的作用分别是什么?
【单选题】Which of the following hypotheses do the experimental data best support?
A.
Increasing precipitation levels bring increasing amounts of airborne sulfate emissions into the lakes.
B.
Increasing air temperatures have the effect of increasing pH levels in the lakes, which in turn increase sulfate-concentration levels in the lakes.
C.
The melting of glacial ice due to gradually increasing air temperatures increases the amount of sulfates in lake water.
D.
Wide variations in precipitation levels contribute to wide variations among the lakes in both pH and sulfate-concentration levels.
【简答题】地籍按照其特点和任务划分,可以分为
【简答题】Abstract的作用
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