右图为高等动物体内甲状腺活动调节示意图。请据图回答：若给该动物注射一定量激素③，血液

(四)

"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 homey 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

维拉帕米的首选适应证是（）

A.阵发性室上性心动过速

B.室性期前收缩

C.心房颤动

D.心房扑动

E.室性心动过速

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除氧器循环泵接一路凝结水作密封冷却水的作用是什么？使用凝结水作的注意事项？