【单选题】已知a与b的图距为 20个遗传单位,从杂交后代测得的重组值仅为18%,说明其间的双交换值为:
【单选题】Which one of the following pairs shows two good examples of characteristics of a balanced, healthy lifestyle?
A.
Non smoking and non active
B.
Nutritional diet and regular water drinking
C.
Non alcohol and low protein diet
D.
Physically active and smoking only a limited number of cigarettes
【多选题】Which two examples does he provide in the video clip to show the findings of his work?
A.
The different ways of shaking hands.
B.
The different ways of saying "you are crazy"
C.
The different ways of smile
【单选题】已知a与b的图距为20单位,从杂交后代测得的重组值仅为18%,说明其间的 双交换值为:
【多选题】Which two of the following are examples of physical access controls?
A.
Automatic system back ups
B.
Authorisation of purchases
C.
Physical inspection of inventory
【多选题】广义管理会计研究成果有( )。
B.
既为企业管理当局的管理目标服务,同时也为非管理集团服务
C.
提供用来解释实际和计划所必需的货币性和非货币性信息
【简答题】小明在学习有关饱和溶液的知识时做了下列实验.请你和他一起完成下列问题. 实验操作 实验现象 温室时,向装有20ml水的烧杯中加入5g硝酸钾搅拌 固体全部溶解,得溶液① 再加入5g硝酸钾搅拌 固体全部溶解,得溶液② 加热 固体全部溶解,得溶液③ 冷却至室温 析出晶体,得溶液④ (1)上述实验得到的4种溶液中一定是饱和溶液的有______(填序号) (2)由上述实验可知,将不饱和的硝酸钾溶液转化为饱和...