为了考察甲、乙两种小麦的长势,分别从中抽出20株测得其高度,并求得它们的方差分别 发布时间:2017-06-04 18:06 │ 来源:www.tikuol.com 题型:填空题 问题: 为了考察甲、乙两种小麦的长势,分别从中抽出20株测得其高度,并求得它们的方差分别为S甲2=3.6,S乙2=15.8,则______种小麦的长势比较整齐.
题型:填空题 Body language is very important in communication. Studies 1 that only 7% of the communication in daily 2 is in words. Westerners expect people 3 at each other 4 the eyes when they talk. If you don't do that while you 5 , it may show that you do not like the person, 6 that you are not interested in what the person says. When 7 hands westerners will shake two or three times. Do not shake 8 westerner's hand for a long time. When a man shakes hands 9 a woman, it is 10 for the woman to hold 11 her hand first. In the west, 12 with one finger at a person while talking 13 means that the person 14 is speaking is criticizing the person who 15 pointed at. Besides this, men in English-speaking countries touch men much 16 than men touch men in China. But men and women touch each other publicly 17 than men and women touch each other publicly in China. Boy friends and girl-friends often 18 hands, embrace ( 拥抱 ) or kiss in public. Good friends often 19 one another with a kiss 20 the cheek, if they are women or of opposite sexes.( )1. A. shows ( )2. A. life ( )3. A. look ( )4. A. with ( )5. A. see something ( )6. A. and ( )7. A. shaking ( )8. A. / ( )9. A. to ( )10. A. better ( )11. A. up ( )12. A. point ( )13. A. loudly ( )14. A. who ( )15. A. is ( )16. A. more ( )17. A. often ( )18. A. hold ( )19. A. greets ( )20. A. in B. show B. lives B. to look B. by B. read a book B. but B. shaken B. a B. towards B. important B. on B. pointing B. fast B. whom B. are B. less B. much often B. touch B. greet to B. on C. have C. lives C. looking C. in C. are looking C. or C. shake C. the C. with C. worse C. back C. pointed C. usually C. which C. was C. longer C. more often C. wave C. greet with C. to D. has D. living D. looked D. to D. are talking D. except D. being shaken D. its D. by D. impolite D. out D. points D. again D. whose D. were D. harder D. too often D. show D. greet D. for 查看答案
题型:填空题 ---_____ is it from your home to the cinema ?---It’s about twenty minutes’ walk .A.How longB.How oftenC.How farD.How soon 查看答案
题型:填空题 当两片8259A工作在级联方式且优先级均固定不变时(见图1),通道1、通道3、通道8和通道9的中断断请求信号按优先级从高到低排列的正确顺序是:A)通道1、通道3、通道8、通道9B)通道1、通道8、通道3、通道9C)通道1、通道8、通道9、通道3D)通道8、通道9、通道1、通道3 查看答案