AND代表"并且";OR代表"或者";NOT代表"不包含" (注意必须大写,运算符两边需空一格)
范例一:( IKTE=图书馆学 OR IKST=情报学) AND IKCR=范并思
范例二:IKTS=计算机应用与软件 AND (IKST=C++ OR IKST=Basic) NOT IKIS=西华师范大学
简 介:
Forecasts for 1991/92 - world wheat, corn, barley, rice and oats trade - U.S. Dept. of Agriculture, Foreign Agricultural Service Report (-)
Central and Southern African regional corn imports forecast up sharply - 1991/92 marketing year forecast - U.S. Dept. Agriculture, Foreign Agricultural Service Report (-)
Corn import forecasts up sharply - forecasts for Central and Southern Africa region; statistical data for marketing years 1981/82 through 1991/92 - U.S. Dept. of Agriculture, Foreign Agricultural Service Report - Illustration (-)
Former USSR grain situation and outlook - 1991/92 grain supply and demand estimates; United States assistance to Russia and the former Soviet Republics - U.S. Dept. of Agriculture, Foreign Agricultural Service Report (-)
Former USSR grain situation and outlook - 1991 grain production estimate remains unchanged; forecast level of wheat imports decreases for 1992; USDA announces availability of $200 million credit guarantee under GSM-102 program on March 2, 1992, and donate (-)
Highlights - 1991/92 world wheat, grain, and rice trade forecasts - U.S. Dept. of Agriculture, Economic Research Service report (-)
Highlights - 1991-1992 forecasts of world supply, use and trade of wheat, coarse grains and rice (-)
Former USSR grain situation and outlook - grain production estimate for 1991/92; trade developments; Commodity Credit Corporation updates fiscal year 92 program announcements to permit sales to successors of former Soviet Union (-)
Forecasts for 1991/92 - world wheat, corn, barley, rice and oats trade - U.S. Dept. of Agriculture, Foreign Agricultural Service Report 1992年月
Central and Southern African regional corn imports forecast up sharply - 1991/92 marketing year forecast - U.S. Dept. Agriculture, Foreign Agricultural Service Report 1992年月
Corn import forecasts up sharply - forecasts for Central and Southern Africa region; statistical data for marketing years 1981/82 through 1991/92 - U.S. Dept. of Agriculture, Foreign Agricultural Service Report - Illustration 1992年月
Former USSR grain situation and outlook - 1991/92 grain supply and demand estimates; United States assistance to Russia and the former Soviet Republics - U.S. Dept. of Agriculture, Foreign Agricultural Service Report 1992年月
Former USSR grain situation and outlook - 1991 grain production estimate remains unchanged; forecast level of wheat imports decreases for 1992; USDA announces availability of $200 million credit guarantee under GSM-102 program on March 2, 1992, and donate 1992年月
Highlights - 1991/92 world wheat, grain, and rice trade forecasts - U.S. Dept. of Agriculture, Economic Research Service report 1992年月
Highlights - 1991-1992 forecasts of world supply, use and trade of wheat, coarse grains and rice 1992年月
Former USSR grain situation and outlook - grain production estimate for 1991/92; trade developments; Commodity Credit Corporation updates fiscal year 92 program announcements to permit sales to successors of former Soviet Union 1992年月