下载APP
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Passage One Desertification (沙漠化) in the dry United States is very serious. Groundwater supplies beneath vast stretches of land are dropping rapidly. Many river systems have dried up. Hu...
A.
both the world and America need the land for agricultural aims
B.
they bring about a large amount of waste of resources
C.
Americans do not need that many shopping centers and apartments
D.
industrial parks and waste dumps are seriously polluting the environment
【多选题】防治沙漠化土地的措施主要有 （ ）
A.
开发深层地下水，扩大农田灌溉面积
B.
因地制宜开发利用太阳能、风能和水能，解决农村用能问题
C.
扩大植被覆盖率，设置沙障与封育固沙
D.
调整土地利用结构，合理放牧，积极营造护田林网
【单选题】Desertification (沙漠化) in the dry United States is very serious. Groundwater supplies beneath vast stretches of land are dropping rapidly. Many river systems have dried up. Hundreds of thousands of acr...
A.
The shrinking of forest coverage.
B.
The lack of water supplies.
C.
A quickly decreasing production of crops.
D.
A large area of cropland changed into grassland.
相关题目：
【单选题】我国沙漠化治理的有效措施有( )
A.
封沙封草育林, 飞播造林(草), 人工造林并举
B.
开垦草场
C.
砍伐森林
D.
过度放牧
【单选题】Passage One Desertification (沙漠化) in the dry United States is very serious. Groundwater supplies beneath vast stretches of land are dropping rapidly. Many river systems have dried up. Hu...
A.
both the world and America need the land for agricultural aims
B.
they bring about a large amount of waste of resources
C.
Americans do not need that many shopping centers and apartments
D.
industrial parks and waste dumps are seriously polluting the environment
【单选题】下列哪项不是引起沙漠化的人为因素
A.
土地的过度开垦
B.
气候变化
C.
水资源不合理利用
D.
放牧过度
【多选题】导致土壤沙漠化的原因有( )。
A.
人类活动
B.
气候变化
C.
植被减少
D.
沙尘暴
【单选题】下列不是造成沙漠化的认为原因是()
A.
人口急速增长
B.
过度放牧、过度垦殖、过度樵采
C.
不合理地利用水资源
D.
风力作用
【单选题】不是沙漠化危害的是（）
A.
破坏土地资源
B.
土地载畜能力
C.
作物的单位面积产量不变
D.
可供农牧的土地面积减少
【单选题】据联合国环境规划署统计，当今世界沙漠化面积约占世界陆地面积的多少？
A.
二分之一
B.
四分之一
C.
八分之一
D.
十分之一
【多选题】防治沙漠化土地的措施主要有 （ ）
A.
开发深层地下水，扩大农田灌溉面积
B.
因地制宜开发利用太阳能、风能和水能，解决农村用能问题
C.
扩大植被覆盖率，设置沙障与封育固沙
D.
调整土地利用结构，合理放牧，积极营造护田林网
【判断题】在草原地区滥牧是沙漠化形成的主要原因。
A.
正确
B.
错误
【单选题】Desertification (沙漠化) in the dry United States is very serious. Groundwater supplies beneath vast stretches of land are dropping rapidly. Many river systems have dried up. Hundreds of thousands of acr...
A.
The shrinking of forest coverage.
B.
The lack of water supplies.
C.
A quickly decreasing production of crops.
D.
A large area of cropland changed into grassland.
【判断题】沙漠化面积增大与温室效应有关。
A.
正确
B.
错误
【单选题】防治沙漠化的核心是 ( )
A.
预防具有潜在沙漠化的土地
B.
扭转正在发展的沙漠化土地
C.
恢复已经发生的沙漠化土地
D.
协调人与自然的关系
【多选题】沙漠化的危害是（）
A.
可工农亩的土地面积
B.
作物的单位面积产量变小
C.
破坏土地资源
D.
土地载畜能力降低