零线的导电能力一般要求不得低于相线的1/3,但单相电气设备的零线与相线的导电能力应是相同的。

1、正确
2、错误
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错误

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Allwewanttodo______tofindenoughwater_______thehorses.

A、are,to
B、is,for
C、be,as
D、is,togive

That’s________excitingnewsthatI’dliketotelleveryonetosharethejoy.

A、so
B、such
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Idon’thaveas______moneyasbefore,butmylifeismore______.

A、many,useful
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Passage4

Questions 16to 20arebasedonthefollowingpassage:

Morethan30,000driversandfrontseatpassengersarekilledorseriouslyinjuredeachyear.Atthespeedofonly30milesperhouritisthesameasfallingfromathird-floorwindows.Wearingaseatbeltsaveslives;itreducesyourchanceofdeathorseriousinjurybymorethanhalf.

Thereforedriversorfrontseatpassengersover14inmostvehiclesmustwearaseatbelt.Ifyoudonot,youcouldbefinedupto£50.itwillnotbeuptothedriverstomakesureyouwearyourbelt.Butitwillbethedriver’sresponsibilitytomakesurethatchildrenunder14donotrideinthefrontunlesstheyarewearingaseatbeltofsomekind.

However,youdonothavetowearaseatbeltifyoureversingyourvehicle;oryouaremakingalocaldeliveryorcollectionusingaspecialvehicle;orifyouhaveavalidmedicalcertificatewhichexcusesyoufromwearingit.Makesurethesecircumstancesapplytoyoubeforeyoudecidenottowearyouseatbelt.(76)Rememberyoumaybetakentocourtfornotdoingso,andyoumaybefinedifyoucannotprovetothecourtthatyouhavebeenexcusedfromwearingit.

1.Thistextistakenfrom________.

A)amedicalmagazineB)apolicereport

C)alegaldocumentD)agovernmentinformationbooklet

2.Wearingaseatbeltinavehicle________.

A)reducesroadaccidentsbymorethanhalf

B)savesliveswhiledrivingataspeedupto30milesperhour

C)reducesthedeathrateintrafficaccidentsD)savesmorethan15,000liveseachyear

3.Itisthedriver’sresponsibilityto________.

A)makethefrontseatpassengerwearaseatbelt

B)makethefrontseatchildrenunder14wearaseatbelt

C)stopchildrenridinginthefrontseatD)wearaseatbelteachtimehedrives

4.Accordingtothetext,whichofthefollowingpeopleridinginthefrontdosnothavetowearaseatbelt?

A)Someonewhoisbackingintoaparkingspace.

B)Someonewhoispickingupthechildrenfromthelocalschool.

C)Someonewhoisdeliveringinvitationletters.

D)Someonewhoisunder14.

5.Forsomepeople,itmaybebetter________.

A)towearaseatbeltforhealthreasons

B)nottowearaseatbeltforhealthreasons

C)togetvalidmedicalcertificatebeforewearingaseatbelt

D)topayafineratherthanwearaseatbelt

Mysisterwasn'tinParislastmonth,soyou_____herthere.

A、mightnothaveseen
B、can'thaveseen
C、mustnothaveseen
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