以前人们希望吃得饱，现在人们希望吃得好，提出“有健康才有将来”的口号，这说明 [

During the summer holidays there will be a revised(修改过的)schedule of services for the students. Changes for dinning-room and library service hours and for bus schedules will be posted on the wall outside of the dining-hall．Weekly film and concert schedules,which are being arranged(安排), will be posted each Wednesday outside of the student club.

　　In the summer holidays, buses going to the town center will leave the main hall every hour on the half hour during the day．The dining-room will serve three meals a day from 7:00 am to 7:00 pm during the week and two meals from noon to 7:00 pm on weekends．The library will continue its usual hours during the week, but have shorter hours on Saturdays and Sundays．The weekend hours are from noon to5:00 pm.

　　All students who want to use the library borrowing services must have a new summer card．This announcement will also appear in the next week’s student newspaper.

小题1:The main purpose of this announcement is to　　 .

A．tell students of important schedule changes

B．tell students of new bus and library services

C．show the excellent services for students

D．ask students to renew their library cards小题2:Times for films and concerts are not listed in this announcement because　　 .

A．they are not to be announced　　　　　

B．they are hard to arrange

C．the full list is not ready　　　　　　　

D．the full list is too long小题3:At which of the following times will the bus leave the main hall?

A．8:00, 9:00, 10:00, 11:00　　　　　　　

B．8:30, 9:30, 10:30, 11:30

C．8:30,9:00, 9:30,10:00　　　　　　　　

D．8:00, 9:30, 11:00, 12:30小题4:In the summer holidays,the library will have　　 .

A．no special hours　　　　　　　　　

B．special hours on weekdays

C．special hours on weekends

D．special hours both on weekdays and weekends

俄制米- 26TS是世界上最大的重型直升机，它在四川地震灾区唐家山堰塞湖应急疏通工程完成后的撤离行动中，把重约14t的挖掘机在30s内匀速提升到距工地600m的空中，在这个过程中它对挖掘机所做的功是____J，功率是____________W(g取10 N/kg)。

枳术丸

A．泻热通便
B．健脾和中
C．消积导滞
D．行气除胀
E．其他

选择正确的功效

剖面上利用波组、波系这些组合关系进行波的对比，可更全面考查（）间的关系。

A.反射波

B.折射波

C.声波

D.横波

投标单位有以下行为时，（）招标单位可视其为严重违约行为而没投标保证金。

A.通过资格预审后不投标

B.不参加开标会议

C.中标后拒绝签订合同

D.开标后要求撤回投标书

E.不参加现场考察