Windows系统中的磁盘碎片整理程序 (11) ,这样使系统可以 (12) 。
A. 对文件能更有效地访问,而对文件夹的访问效率保持不变
B. 对文件夹能更有效地访问,而对文件的访问效率保持不变
C. 对文件和文件夹能更有效地访问
D. 将磁盘空闲区的管理方法改变为空白文件管理方案
因采购的货物技术复杂或者性质特殊,不能确定详细规格或者具体要求的,可以采用询价式谈判方式采购。 ( )
A. 对
B. 错
English By Radio Each quarter hour program is broadcast nine times a day so that as many listeners as possible can hear it. A supplementary program is broadcast on weekdays at GMT 12:45 and GMT 21:30. On Sundays only there is an additional English by Radio program from GMT 12:15 to 12: 30: Monday COUNTDOWN—For students in their last six months of study for the Cambridge First Certificate. (I) From 20/10. ZERO ENGLISH—A new beginner’s series. (E) Tuesday IN A MANNER OF SPEAKING—a series of talks on English pronunciation in different parts of the world such as the British Isles, America and Australia. (A) Wednesday WEEKLY ECHO—A dialogue series illustrating everyday life in Britain and offering the listener practice in aural comprehension. (I) Thursday THE LANGUAGE OF BUSINESS—English for commerce. (A) Friday PLAY THE GAME—A quiz game that tests and teaches English. (I) Saturday CAN I HELP YOU—Answers listener’s questions on English grammar. (A) Sunday SPEAKING OF ENGLISH—A magazine grogram for teachers and students of English—quarter and half hour versions throughout the day. (A) GMT 12:15 PEDAGOGICAL POP—Learn English with pop songs. (I) * E=Elementary I=Intermediate A=Advanced TIME PROGRAMS CONTENTS Monday Zero English A new (46) series. (47) Weekly Echo A dialogue series illustrating everyday life in BritishIsles America and Australia. Friday Play The Game A (48) that tests and teaches English. Saturday Can I Help You Answers listener’ s questions (49) Sunday Speaking English A magazine program for (50) of English.
测量员在校正水准测量仪器时,动作要“轻、慢、稳”,不准用蛮力,不准用敲打。( )
A. 对
B. 错