随着巴西农业的快速发展,可能发生的突出环境问题是()
A.水土流失加剧
B.土地荒漠化
C.森林面积锐减
D.土壤污染严重
A、水土流失加剧
A.水土流失加剧
B.土地荒漠化
C.森林面积锐减
D.土壤污染严重
A、水土流失加剧
In interpreting ratios such as those in Table 21-1,one must be cautions about drawing the conclusion that diversification is rising as rapidly as the numbers that are reported rise. Suppose a Brazilian buys a United States international equity fund, which places its clients' money in Brazil's stock market. What happens to Brazilian and U.S. gross foreign assets and liabilities? What happens to Brazilian and U.S. international diversification?
A.精确农业
B.科技农业
C.现代农业
D.新型农业
A.瑞典:生物天然气实现了较早的商业化应用,形成了生物天然气并网以及绿色交通燃料的交易市场
B.德国:主要是对沼气发电项目的开发,通过对青贮秸秆、农业废弃物或专用的沼气生产原料来生产沼气,用于热电联产
C.英国:采用混燃热电联产形式和纯生物质发电形式来替代传统的燃煤发电
D.美国和巴西:采用生物液体燃料的形式发电。美国和巴西的燃料乙醇产量占全球生产总量的84%
A.家庭农场
B.农业企业
C.农民合作社
D.农业社会化服务组织