施工单位应在危险性较大作业现场设置明显的安全警示标志和警示牌。

Directions:

Thissectionistotestyourabilitytounderstandshortconversations.Thereare2recordedconversationsinit.Aftereachconversation,therearesomerecordedquestions.Boththeconversationsandquestionswillbespokentwotimes.Whenyouhearaquestion,youshoulddecideonthecorrectanswerfromthe4choicesmarkedA,B,CandDgiveninyourtestpaper.ThenyoushouldmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter.

6、A.Thegoodsareoutofstock.

B.Sheismovingtoanothercity.

C.Thesalesseasoniscomingsoon.

D.Sheisafraidthepricewillgodown.

7、A.Bytrain.B.Byair.C.Byship.D.Bytruck.

8、A.Inthreeweeks.B.Intwoweeks.C.Nextweek.D.Nextmonth.

9、A.HRmanagerassistant.

B.Salesmanager.

C.Officesecretary.

D.Softwareengineer.

10、A.3weeks.B.6weeks.C.3months.D.6months.

交叉施工不宜上下在同一垂直方向上作业。下层作业的位置只要有足够空间施工即可。

水利水电工程施工中常用的土石分级，依（）等，土分为4级，岩石分为12级。

国家建立引用水水源保护区制度。在饮用水水源保护区内禁止建立排污口。禁止在饮用水水源一级保护区内从事()或其他可能污染饮用水水保的活动。