依据《招投标法》判断下列哪些说法是正确的（）。

Directions:

Thissectionistotestyourabilitytounderstandshortdialogues.Thereare5recordeddialoguesinit.Aftereachdialogue,thereisarecordedquestion.Boththedialoguesandquestionswillbespokenonlyonce.Whenyouhearaquestion,youshoulddecideonthecorrectanswerfromthe4choicesmarkedA,B,CandDgiveninyourtestpaper.ThenyoushouldmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter.

1、A.Thereisnopaper.

B.Themancanusetheprinter.

C.Theprinterdoesn'twork.

D.Themanhastopayfirst.

2、A.Hehasgotanewjob.

B.Hehasgotapayrise.

C.Hehasbeenpromoted.

D.Hehasboughtanapartment.

3、A.Sellacar.

B.Rentacar.

C.Repairacar.

D.Buyausedcar.

4、A.Hedoesn'tlikethecolor.

B.Hedoesn'tlikethestyle.

C.Itistoosmall.

D.Itisofpoorquality.

5、A.Thechiefengineer.

B.Thereceptionist.

C.Theofficesecretary.

D.Thesalesmanager.

在制作网页时，如果是连续调的图象，应存储为哪种格式：

下面对图层集描述正确的是：

交付竣工验收的建筑工程，必须()等条件，经竣工验收合格后，方可交付使用。