The agricultural sciences deal with the challenges of food and fiber production and processing.They include the technologies of soil cultivation, crop cultivation and harvesting, animal husbandry and the processing of plant and animal products for human consumption and use.As a result of the doubled yields of some economic crops, the farm output per hour of farm work increased almost 10-fold as capital was substituted for labor.New techniques of preserving food products made possible transportation over greater distances, in turn facilitating adjustments among locations of production and consumption, with further benefits to production efficiency.

[单选题]What does the Food and Agriculture Organization say about world food produc

[名词解释] Optical fiber光纤

[单选题]Fiber to the office是指（）。A .光纤到楼B .光纤到办公室C .光纤到户D .光纤到小区

[单选题]Data Processing表示（）。A . 数据处理B . 记录C . 接口D . 链路

[单选题]Using fiber optic cable, optical communications have enabled telecommunication （93） to be made over much greater distances and （94）much lower levels of（95）in the transmission medium and possibly most important of all, optical fiber communications hav

[名词解释] 蒲肯野纤维（Purkinje fiber）

[单选题]Is the food in fast food restaurants always ready before the customers order it?A．Yes，it is．B．N0，it is seldom ready．C．Yes，it is cooked to order．D．N0，not always，but usually．

[单选题]Electronic Data Processing表示（）。A . 电子数据处理B . 管理信息系统C . 知识管理D . 事务处理

[单选题]What is the distribution processing value? （）A . DistributionB . ProcessingC . Sales and processingD . Changing the length, thickness and the package of the goods

[名词解释] 流通加工 distribution processing