Toggle navigation
查题无忧
法律法规类
建筑工程类
医学卫生类
知识竞赛类
财经会计类
招聘考试类
计算机类
成人教育类
资格证书类
题目
立即检索
人类把野生动物转化为家畜主要经历了两个阶段,包括()。
A、饲养B、驯养C、调教D、驯化
答案解析
查看答案
上一篇:
品种应具备的条件包括()。
下一篇:
In condensation polymerization, two monomers, dimers, trimers, tetramers, or oligomers, can react with each other at any time.()
品种应具备的条件包括()。
Common polymers, such as PE, PP, PVC, PSt, nylon, and PET have linear structures.()
按改良程度,将品种分为三类,包括()。
学前知识系统化教学中,幼儿园活动的类型主要分为日常生活活动和()。
When the methyl group and H atom are located on opposite sides of the double bond, the polymer is a cis-isomer.()
在课程运作的过程中进行的,目的是要提供证据以便确定如何修订课程计划的评价是()。
Nowadays, all of the polymers are synthesized artificially.()
我国约有700个畜禽品种,约占世界的1/6。()
Silicon rubber also has many reactive points in the molecular chains, which is same as polyisoprene and polybutadiene.()
Number average molecular weights provide us some information related to ().
×
查看答案