在安装操作系统前，必须对硬盘进行操作（）。A、分区 B、分区和格式化 C、格式化 D

Many researchers have found greater dependence and obedience in very young girls, greater autonomy and activity in boys. When a barrier is set up to separate children from their mothers, boys try to knock it down; girls cry helplessly. There is little doubt that mother’s encouragement or discouragement—of such behavior plays a major role in determining adult personality. For example, a mother often stimulates male autonomy by throwing a toy far away from her young son, thus silently suggesting to him that he leaves her to get it.
Animal studies suggest that there may be a biological factor in material behavior; mothers of some monkeys punish their male babies earlier and more often than their female offspring; they also touch their female babies more often and act more protectively toward them.
As for the controversial question of female "passivity", psychologist Helen Deutsh believes that the concept has been misunderstood. "There is no contradiction between being feminine and working. The self can be active in both men and women," she says. It is only in love and sex that passivity is particularly appropriate for women. As she sees it, passivity is no more than a king of openness and warmth; it does not mean "inactivity of emptiness".
Another controversy ranges over the effect of hormones. Aggressive women; who discount hormonal influence, disagree violently with scientific researchers, who almost unanimously agree that hormones help determine how people feel and act. So far, there have been few studies of male hormones, but scientists think they may eventually discover hormonal cycles in men that produce cyclic changes in mood and behavior. As for females, studies have indicated that 49 percent of female medical and surgical admissions, most psychiatric hospital admission and 62 percent of violent crimes among women prisoners are related with hormonal cycles in women.

According to Helen, the word "passivity" underlined in Paragraph 3 means ______ .

A．passive to workmates

B．passive to lovers
C．selfness and indifference

D．dullness and keeping to oneself

下列关于酒店对易燃、易爆品入库后进行定期检查的时间要求叙述正确的是哪项（）？

A.每月一次

B.每月两次

C.每周一次

D.每周两次

周女士，20岁，因发热、咽痛1周入院，诊断为急性淋巴细胞性白血病。

静脉注射柔红霉素时药液漏出血管外处理措施不妥的是（）。

A.尽量回抽局部渗液

B.局部用普鲁卡因封闭

C.局部热敷

D.25％硫酸镁湿敷

E.抬高患肢

胰腺癌易侵犯的周围脏器中，哪项除外（）

A.十二指肠

B.胃窦后壁

C.胃窦前壁

D.结肠

E.大网膜

自阀调整阀的功用是直接控制列车管的充、排气。