Man’ s chief offence against nature has been to damage the earth’ s natural covering of vegetation without replacing it with a s

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问题 Man’ s chief offence against nature has been to damage the earth’ s natural covering of vegetation without replacing it with a system of farming that is to maintain the fertility of the soil. Man, the farmer, has penetrated new lands in many directions, and the forests and grasslands have been vulnerable to his various activities.

选项

答案人类对自然的主要忤逆是破坏了地球的自然植被，却不用农业生态系统来替换以保持其肥沃的土壤。人类，确切地说是农民，在很多生态领域开垦了新耕地，这使得森林和草地很容易受到其他各种活动的影响。

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考博英语

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Man’ s chief offence against nature has been to damage the earth’ s natural covering of vegetation without replacing it with a s

考博英语

Some______goodluckbroughtusnothingbuttrouble.

Tousitseemssonaturaltoputupanumbrellatokeepthewateroffwhenitrains.Butactuallytheumbrellawasnotinvented

Thedrunkencoupledidnothingtokeeptheflatcleanandtidyandhivedintheutmost_____.

Islanguage,likefood,abasichumanneedwithoutwhichachildatacriticalperiodoflifecanbestarvedanddamaged?Judgin

MenhaveoftenbeenpraisedbybeingtoldthattheywereassmartasaPhiladelphialawyer.Nooneknowswhythereissomething

Theworstthingyoucandoiskeepyourselfinanendlesscycleofrelationships.Youhavetotakeabreatherbetweenrelationsh

Educationalpoliciesmade______thehoofbysuccessivesecretariesofstatearethemainreasonforlowteachermorale.

Anumberofarticleshavebeenpublishedbypsychologistsinfavoroftheirprocessionbeingpermittedtoprescribepsychotropic

Intheabsenceofoptimism,weareleftwithnothingbutcritics,naysayers,andprophetsofdoom.Whenanationexpectsthewor

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在生产过程中，消除或控制危险及有害因素，保障人身安全健康、设备完好无损、环境免遭破坏及生产顺利进行是指()。

下列关于外部融资的说法正确的是( )。

_________认为，操作性行为主要受强化规律的制约。

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全党办报

用来存储当前正在运行的应用程序和其相应数据的存储器是()。

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