描述:
ium between the grain production
and water resource: the drought and the irrigation area in northeast china, the drought and the
irrigation region in Huanghuaihai area, the drought and the irrigation area in northwest
china.The article analized the characteristic of water using of the main crops and the main
cropping systems, compared the economic benefit of the water-saving planting patterns,
studied the economic benefit, the water-saving benefit and participatory farmers survey
results etc. of the water-saving technologies.
描述:
Scholar artist involves all the process of this transformation. This also created
a unique art form which is a combination of brush painting and bamboo
carving.
描述:
t Chinese social security
lde
迁︸﹄U
system review
design can not
research on China's new social security system and change the system
replaced with the role and si加ficance.China is a country with a "big