问题 单项选择题

比旋度是指()

A.一定条件下,偏振光透过长10cm,且含1g/ml旋光物质的溶液时的旋光度

B.一定条件下,偏振光透过长1cm,且含1g/ml旋光物质的溶液时的旋光度

C.一定条件下,偏振光透过长10cm,且含1%旋光物质的溶液时的旋光度

D.一定条件下,偏振光透过长1mm,且含1mg/ml旋光物质的溶液时的旋光度

E.一定条件下,偏振光透过长1cm,且含1%旋光物质的溶液时的旋光度

答案

参考答案:A

阅读理解

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

问答题

案例四

某办公楼的招标人于2002年9月11日向具备承担该项目能力的A、B、C、D、E5家承包商发出投标邀请书,其中说明,10月17~18日9至16时在该招标人总工程师室领取招标文件,11月8日14时为投标截止时间。该5家承包商均接受邀请,并按规定时间提交了投标文件。但承包商A在送出投标文件后发现报价估算有较严重的失误,遂赶在投标截止时间前10分钟递交了一份书面声明,撤回已提交的投标文件。

开标时,由招标人委托的市公证处人员检查投标文件的密封情况,确认无误后,由工作人员当众拆封。由于承包商A已撤回投标文件,故招标人宣布有B、C、D、E4家承包商投标,并宣读该4家承包商的投标价格、工期和其他主要内容。

评标委员会委员由招标人直接确定,共由7人组成,其中招标人代表2人、本系统技术专家2人、经济专家1人、外系统技术专家1人、经济专家1人。

在评标过程中,评标委员会要求B、D两投标人分别对其施工方案作详细说明,并对若干技术要点和难点提出问题,要求其提出具体、可靠的实施措施。作为评标委员的招标人代表希望承包商B再适当考虑一下降低报价的可能性。

按照招标文件中确定的综合评标标准,4个投标人综合得分从高到低的依次J顷序为B、D、C、E,故评标委员会确定承包商B为中标人。由于承包商B为外地企业,招标人于11月10日将中标通知书以挂号方式寄出,承包商B于11月14日收到中标通知书。

由于从报价情况来看,4个投标人的报价从低到高的依次顺序为D、C、B、E,因此,从11月16日至12月11日招标人又与承包商B就合同价格进行了多次谈判,结果承包商B将价格降到略低于承包商C的报价水平,最终双方于12月12日签订了书面合同。

问题:

从招标投标的性质看,本案例中的要约邀请、要约和承诺的具体表现是什么?