主页
学科
搜索
账户
常见问题
当前学科：选修课
题目：
未知类型
下列哪种元素属于半导体元素?()
A.硅
B.铜
C.银
D.金
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
土壤形成的主要因素有（）、（）、（）、（）、（）和人类活动。
动脉导管未闭患者在哪种情况下可能出现差异性发绀（）。
Literacy Volunteer Last summer I went through a training program and became a literacy volunteer （扫盲志愿者）. The training I received， though excellent， did not tell me how it was to work with a real student， however. When I began to discover what other people's lives were like because they could not read， I realized the true importance of reading. My first student Jane was a 44-year-old single mother of three. In the first lesson， I found out she walked two miles to the nearest supermarket twice a week because she didn't know which bus to take. When I told her I would get her a bus schedule， she told me it would not help because she could not read it. She said she also had difficulty once she got to the supermarket because she couldn't always remember what she needed. Since she did not know words， she could not write out a shopping list. Also， she could only recognize items by their labels. As a result， if the product had a different label， she would not recognize it as the product she wanted. As we worked together， learning how to read built Jane's self-confidence， which encouraged her to continue in her studies. She began to make rapid progress and was even able to take the bus to the supermarket. After this successful trip， she reported how self-confident she felt. At the end of the program， she began helping her youngest son， Tony， a shy first grader， with his reading. She sat with him before he went to sleep and together they would read bedtime stories. When his eyes became wide with excitement as she read pride was written all over her face， and she began to see how her own hard work in learning to read paid off. As she described this experience， I was proud of myself， too. I found that helping Jane to build her self-confidence was more rewarding than anything I had ever done before. As a literacy volunteer， I learned a great deal about teaching and helping others. In fact， I may have learned more from the experience than Jane did. As Jane described her experience，I was proud of myself，too.（）
男患，20岁，受寒后出现右臀部向大腿后部、小腿外侧放射痛，阵发性加剧；查体：右Lasegue征（+），臀点、腘点及外踝点压痛（+），小腿外侧和足背痛觉减低，踝反射减低。可能的诊断是（）。
丹参抗菌的主要成分为（）
急性脊髓炎不可能出现的症状、体征（）。
（）与力源有关，软岩在构造应力、地下水、重力、工程偏应力作用下，体积扩胀。
下列油马达中允许工作油压较低的是()。
相邻细胞突起之间连接的方式是（）。
晚清人李慈铭在《越缦堂日记》中记载：二十七戊子记“闻圆明园为夷人劫掠后，奸民乘之，攘夺余物，至挽车以运之，上方珍秘散无孑遗”。这段材料说明（）