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第 1 到 3 筆結果,共 83 筆
第 2 頁
In short , it is now possible to talk intelligibly about the limits of the earth's resources for the support of life - and not only possible but necessary . Mr. McHale provides tables giving the resources of the earth , and he shows the ...
In short , it is now possible to talk intelligibly about the limits of the earth's resources for the support of life - and not only possible but necessary . Mr. McHale provides tables giving the resources of the earth , and he shows the ...
第 7 頁
To illustrate my point , let me present a model : By spend- ing ten million dollars it would be possible to connect forty thousand hamlets in a country like Peru with a spiderweb of six - foot - wide trails and maintain these , and , in ...
To illustrate my point , let me present a model : By spend- ing ten million dollars it would be possible to connect forty thousand hamlets in a country like Peru with a spiderweb of six - foot - wide trails and maintain these , and , in ...
第 6 頁
For 25 years it has been possible to run the economy ( of the Western world ) at full speed , in fact at continuous acceleration . Economists consider the figures of steel consumption very good indicators of indus !
For 25 years it has been possible to run the economy ( of the Western world ) at full speed , in fact at continuous acceleration . Economists consider the figures of steel consumption very good indicators of indus !
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