地籍控制测量的精度是依据（）和地籍图的精度制定的。 A.界址点的精度 B.地籍图的比例尺 C.测区的大小 D.埋石点的密度 E. - 查题网

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河南成教 / 地籍测量

地籍控制测量的精度是依据（）和地籍图的精度制定的。

A.界址点的精度

B.地籍图的比例尺

C.测区的大小

D.埋石点的密度

E.

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地籍测量

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The water we drink and use is running short in the world. We all have to learn how to stop wasting our limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done in this field. Today in most large cities, fresh water is used only once, then it runs into waste system. But it is possible to pipe the used water to a purifying factory. There it can be filtered and treated with chemicals so that it can be used again, just as it were fresh from a spring. But even if every large city purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we'd have to do to make use of the seawater on earth is to get rid of the salt. This process is called desalinization, and it is already in use in many parts of the world. (1)The way to stop wasting our limited water is to _ _ _ _ _ _ _ _ .（2分）A、do experiments with waterB、purify the used water and reuse itC、use fresh water once againD、make use of seawater(2)The following tells us how to reuse the used water. Which is the right order of the passage?（2分）A、to have the used water filteredB、to put chemicals in itC、to pipe it to the usersD、to pipe the used water to be purified to a factory(3)There wouldn't be enough water for us if we didn't _ _ _ _ _ _ _ _ _ .（2分）A、turn to the oceans for more waterB、reuse used water and make use of seawaterC、desalt seawaterD、take steps to reuse all water on earth(4)The word "it" in the last sentence refers to _ _ _ _ _ _ _ .（2分）A、seawaterB、purified waterC、the process of getting rid of the salt in seawaterD、the process of collecting salt from the sea oceans(5)The best title for the passage is " _ _ _ _ _ _ _ ".（2分）A、How to Reuse WaterB、Two Solutions to the Problem of Water ShortageC、Stop Wasting Our Limited WaterD、How to Make Use of Seawater新发展英语综合教程（二）

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