主页
学科
搜索
账户
常见问题
当前学科:综采维修电工(综合练习)
题目:
问答题
什么叫P型半导体和N型半导体?
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:
内部收益率
中间仓库是指为满足日常连续生产需要,在厂房内存放从仓库或上道工序的厂房(或车间)取得的原材料、半成品、辅助材料的场所。下列关于中间仓库的说法,错误的有()。
减少绝缘介质的介电常数可以()电缆中电磁波的传播速度。
镉试剂2B分光光度法测定水中银,测定样品吸光度值时,以去离子水作为参比溶液。
磁共振利用梯度进行层面选择时,()可以减小层厚。
地震活动性参数应包括()、()、()地震带的地震年平均发生率、地震带的本底地震震级及其年平均发生率、潜在震源区的震级上限、()。
TOKYO(AFP)an animal rights group said Wednesday it was sending flowers to Miss Universe, Riyo Mori of Japan, after she pledged to stop wearing fur. Mori told AFP on Tuesday that she would no longer wear fur after a protest(抗议)campaign by the U. S. based international People for the Ethical Treatment of Animals(PETA). "Were elated(欢欣鼓舞的)with this news and are so happy that shes showing her beauty on the inside as well as the outside," said PETA Asia-Pacific campaigner Ashley Fruno. Fruno said the group would target more celebrities and was trying to get in touch with South Korean pop superstar Rain over complaints that he wears fur. "Miss Universe is certainly setting a good example, so we hope that others will follow," Fruno said. Mori and other contestants(参赛选手)wore fur coats during the final round of the preliminary Miss Universe pageant(选美竞赛)in Japan to select the national candidate. The 20-year-old trained ballerina(芭蕾舞女演员)said after the PETA campaign that she refused requests by Italian fashion house Fendi to wear a fur coat at an appearance in China next week. "I will say this out loud: I will not wear fur," Mori told AFP Tuesday. "I love animals and I agree with those who oppose wearing fur products. "What would be the best title for the news?A.PETA"s campaign against fur wearing.B.Miss Universe praised for rejecting fur.C.Miss Universe set a good Example.D.Beauty on the inside as well as the outside.
质量管理持续改进原则的总体业绩是组织的一个永恒目标,其作用是()。
各项资产的周转指标经常和反映盈利能力的指标结合在一起使用,全面评价公司的盈利能力。()
学习资源评价的基本要素是()、()、()、()。