题目: 一个能量信号具有零平均功率,而一个功率信号具有无限大能量。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0419/636bbf6ec07e9900168425b28cfd13e4.html 下面是错误答案,用来干扰机器的。参考答案:B解析: ∵M={1,2,3,4,5},则[*]选B。
题型:多项选择题 人民警察的纪律与义务既有联系又有区别。下列说明二者关系正确的有( )。A.纪律与义务都是人民警察必须履行的,都具有强制性和约束作用B.从《人民警察法》规定的纪律和义务的内容来看,纪律的规定侧重于对人民警察履行职责的影响,是保证人民警察履行职责最基本、最起码的要求C.义务的规定侧重于对警民关系的影响,是对人民警察在履行职责的基础上提出的进一步的要求,即履行职责时的职业道德要求D.纪律的作用不仅在于它是人民警察履行职责的保障,而且也是人民警察履行义务的基础 查看答案
题型:补全对话,情景问答 从方框中选择合适的选项补全对话,使对话意思完整、符合逻辑(有两项是多余的)。将答案答在答题处。— What's your plan for the summer holiday?— I'll visit my cousin. __1__ — Is the farm big or small?— It's not very big, but it's really a nice one. __2__ — I'm sure you will enjoy staying there. What does he grow on the farm?— __3__— What are you going to do there?— I'11 go there and help him pick fruit.— __4__ It sounds fun.— It really does. And the fruits are very delicious. I enjoy them very much.— Are they sold here? — Of course.__5__ My cousin will send them to other countries some day , too.A. He grows oranges, peaches and grapes. B. And they are also sold in many cities in China. C. He has a farm in the countryside. D. You'll pick fruit! E. I'd like to go there on summer holidays. F. I like countryside. G. Can you pick fruit?1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 查看答案
题型:问答题 简答题 2015年以来,抚州市临川区大力实施四大工程,积极开展八项活动,着力整治城乡环境,提升市民素质,文明创建扎实推进,城市魅力尽情释放。该区在文明创建工作中,注重创新,做到组织领导、机制建设、创建经费、创建队伍、督查考核五到位。整治城乡环境,抓好四大工程,即城市基础设施建设工程、市容环境整治工程、文明社区帮建工程、文化生态示范村建设工程。提升市民素质,抓好八大主题宣传教育活动,即“讲文明、守秩序、爱临川”主题实践教育活动,道德讲堂活动,道德模范、身边好人评选和事迹发布等宣传教育活动。结合材料,从“文化传播”和“文化建设”角度,谈谈临川应如何创建文明城市? 查看答案