问题
填空题
近年来，PC机中出现了两种高速串行通信端口，它们是IEEE-1394和USB。USB目前有3种版本，其中速度最快的是______版。
答案
参考答案：USB2.0。
解析：
[分析]： USB目前的三种版本为USB1.0，USB1.1和USB2.0，其中 USB2.0是USB1.1规范的向后兼容的扩展，它比最初的1.0和1.1版运行快40倍。
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近年来，PC机中出现了两种高速串行通信端口，它们是IEEE-1394和USB。USB目前有3种版本，其中速度最快的是______版。
参考答案：USB2.0。
解析：
[分析]： USB目前的三种版本为USB1.0，USB1.1和USB2.0，其中 USB2.0是USB1.1规范的向后兼容的扩展，它比最初的1.0和1.1版运行快40倍。
| 完形填空。 | |||
| Chen Yue gets __1__ at 6:00 every weekday. She eats __2__ at 6:15.Then she __3__ English. At 6:50, she leaves home. She __4__ a bus to school. She gets there __5__ 7:10. She doesn't want to be __6__ . Classes begin at 8:00. Chen Yue has lunch at her uncle's __7__ at around 12:00. In the __8__ , classes are over at 4:00, then she __9__ games. She gets home at 5:00. In the evening she does her homework. And sometimes she __10__ TV. She goes to bed at 10:00. | |||
| ( ) 1. A.up ( ) 2. A.dinner ( ) 3. A.reads ( ) 4. A.gets ( ) 5. A.in ( ) 6. A.late ( ) 7. A.family ( ) 8. A.day ( ) 9. A.likes ( ) 10. A.sees | B. down B. lunch B. sees B. has B. at B. early B. bedroom B. noon B. gets B. watches | C. off C. breakfast C. likes C. takes C. of C. slow (慢的) C. classroom C. afternoon C. plays C. reads | D. to D. supper D. does D. goes D. on D. quickly (快的) D. house D. morning D. works D. looks |