更多"The farming methods have been______"的相关试题:
[单项选择]What methods have been taken by the developing countries to encourage trained personnel to return
A. To fine those who do not come back.
B. To set up special "return" programs.
C. To ask for help from the International Organization for Migration.
D. To require the developed countries not to offer jobs to those who do not return.
[单项选择]During these ten years, many new methods have been ______ in the field of foreign language teaching.
A. adopted
B. adapted
C. alarmed
D. aided
[单项选择]Accordingly, a number of other methods have been employed
A. Therefore
B. Afterwards
C. However
D. Furthermore
[单项选择]New and more______methods have to be found for collecting earthquake data and analyzing it.
A. up-to-date
B. update
C. up to
D. outdated
[单项选择]We have new methods ( )compensation trade and joint ventrue.
A. likes
B. as
C. like
D. /
[单项选择]We have new methods ( ) compensation trade and joint ventrue.
A. likes
B. as
C. like
D. /
[单项选择]We have new methods( )compensation trade and joint ventrue．
A. likes
B. as
C. like
D. /
[单项选择]
Low-level slash-and-burn farming doesn’t harm rainforest. On the contrary, it helps farmers and improves forest soils. This is the unorthodox view of a German soil scientist who has shown that burnt clearings in the Amazon, dating back more than 1,000 years, helped create patches of rich, fertile soil that farmers still benefit from today.
Most rainforest soils are thin and poor because they lack minerals and because the heat and heavy rainfall destroy most organic matter in the soils within four years of it reaching the forest floor. This means topsoil contains few of the ingredients needed for long-term successful farming.
But Bruno Glaser, a soil scientist of the University of Bayreuth, has studied unexpected patches of fertile soils in the central Amazon. These soils contain lots of organic matter.
Glaser has shown that most of this fertile organic matter comes from “black carbon”—theorganic particles from camp
A. it does no harm to the topsoil of the rainforest
B. it destroys rainforest soils
C. it helps improve rainforest soils
D. it diminishes the organic matter in rainforest soils
[单项选择]Please enter without knocking A. You don't have to knock before you go in. B. Please don't come in now. C. You can go in without opening the door.
[单项选择]Moving parts of machines and motor vehicles have to be ______ regularly to reduce friction.
A. lubricated
B. fabricated
C. embedded
D. dictated
