一、单项选择题(在每小题的四个备选答案中,选出一个正确的答案,并将其代码填入题干后的横线上,每题1分,共20分) 1.聚氯乙烯薄膜和聚乙烯薄膜相比D A保温性强耐尘染 B保温性差不耐尘染 C保温性差耐尘染 D保温性强不耐尘染

正规表达式和有穷自动机 1指与出正规式匹配的串 a)(abb)*c与后面的那些串匹配? ababbc abab c babc aaabc

习题一 1用连线连接左列概念与右列的解释: (1)存储器 A.控制CPU操作方式的标志位,共有三位:DF、IF、TF

例设ay+bx2y+i(x3+cxy2)为解析函数,求a,b,c的值 解设f(z)=(ay3+bx2y)+i(x3+cxy2)=u+i

DⅤR-2000B微机励磁调节器是我公司在引进的英国 BRUSH公司的MAVR自动电压 调节器技术的基础上,开发了适合我公司的三机同轴无刷励磁系统的微机励磁调节器。它 继承了第一代DVR-2000A系列微机励磁调节器的全部调节、控制及限制保护功能,并结 合了几百台套的现场运行经验的基础上开发研制的升级换代产品

1 Background Information 2 Text Analysis 3 Lanquage Points

Unit 9: Petihosee Eanthe 1. Pre-Reading Activities 2. Intensive Study 3. Quiz 4. Keys

Uint8 Ⅱ. Listening skills Listening for Rents or Charges 1. M: Look at this ad! \ One bedroom apartment, with kitchen and bathroom. \ It's close to our school, and the price is only $250 a month W: But I want an apartment at least $50 cheaper Q: What is the highest rent the woman is willing to pay? B)$200

Uint10 I. Basic listening Practice 1. Script W: Many Chinese students are too shy to say anything in a classroom M: I think they dont speak because their culture values modesty, and they dont want to appear to be showing off. Goes back to Confucius

Uints I. Basic listening practice 1. Script W: Why do some people stay in one job for life while others switch jobs from time to M: Some people want a fixed routine so that they dont have to adapt tot new circumstances over and over again, while others think variety is the spice of life Q: According to the dialog, why do some people stick to one job for life?