根据上述资料,初步诊断A.胃溃疡癌变 B.胃溃疡伴上消化道出血 C.胃溃疡伴幽门梗阻 发布时间:2017-06-08 22:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: 根据上述资料,初步诊断A.胃溃疡癌变B.胃溃疡伴上消化道出血C.胃溃疡伴幽门梗阻D.胃溃疡伴穿孔E.复合性溃疡
题型:单项选择题 随着现代社会的发展,电子废弃物正成为新的危险废物污染源。阅读下列材料回答问题:材料一 电子电器产品是20世纪增长最快的产品之一。随着科学技术的发展与革新,电子产品更新速度越来越快,电子产品的使用寿命相应会缩短,这将使电子废弃物的数量呈直线增长。材料二 20世纪90年代以后,在欧美、日本等发达国家开始研究并进行了工业规模的回收利用。电子废弃物处理的基本工艺流程大致如下图所示。(1)不合理的电子废弃物处置方式会引起哪些主要危害?(4分)(2)把有机物和金属分离出来的方法是 (2分)(3)从源头控制的角度,生产者采取哪些生产设计措施可减少电子垃圾的危害?(4分) 查看答案
题型:单项选择题 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.Animal studies show that ______ .A.monkey mothers know some knowledge on biologyB.mothers tend to show real love to their female babiesC.the offspring does not need so much caring from motherD.monkey mothers give more care to their female kids by instinct 查看答案