问题 问答题 案例分析题

在适宜的条件下,测定光照强度对植物光合速率的影响。图甲表示实验装置;图乙表示在一定条件下测得的该植物光照强度与光合速率的关系;图丙是叶肉细胞中光合作用的部分生理过程。请分析回答:

请在答题卷中相应的位置绘出与乙图相对应的曲线,其中当光照强度达到光补偿点和光饱和点时,相应的CO2总吸收量的值分别是多少?

答案

参考答案:

8.25;24.75。

单项选择题
单项选择题

"Congratulations, Mr. Jones, it’s a girl. "

Fatherhood is going to have a different meaning and bring forth a different answer from every man who hears these words. Some feel proud when they receive the news, while others worry, wondering whether they will be good fathers. Although there are some men who like children and may have had considerable experience with them, others do not particularly care for children and spend little time with them. Many fathers and mothers have been planning and looking forward to children for some time. For other couples, pregnancy was an accident that both husband and wife have accepted willingly or unwillingly.

Whatever the reaction to the birth of a child, it is obvious that the change from the role of husband to that of father is a difficult task. Yet, unfortunately, few attempts have been made to educate fathers in this re-socialization process. Although many good books have been written about American mothers, only recently have some books discussed the role of a father.

It is argued by some writers that the transition to the father’s role, although difficult, is not nearly as great as the transition the wife must make to the mother’s role. The mother’s role seems to require a complete transformation of daily routine and adaptation to a new life, on the other hand, the father’s role is less demanding and immediate. However, even though we have mentioned the fact that growing numbers of women are working outside the home, the father is still thought by many as the breadwinner in the household.

The transition to the mother’s role requires that the wife()

A. changes her life style in a quite different way

B. makes a complete change in her everyday life to deal with the new situation

C. stays at home to take care of the baby

D. helps her husband in his re-socialization process