什么是农产品标准化生产?
参考答案:
指以农业科学技术和实践经验为基础,运用简化、统一、协调、选优原理,把科研成果和先进技术转化为标准,在农业生产和管理中具体实施应用的过程。
Not only do the two brothers look _____ but also they walk, talk and think _____. Sometimes, it is hard
to tell them apart. [ ]
A. like; like
B. like; likely
C. alike; alike
D. like; alike
哌唑嗪有()
A.躯体依赖性
B.首剂现象
C.耐药性
D.耐受性
E.致敏性