用于排除氢气与空气混合物时,建筑物全面排风系统的吸风口上缘至顶棚平面或屋顶的距离()。

A、不小于01m
B、不小于1m
C、不大于01m
D、不大于1m
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正确答案:

C

答案解析:

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Theonlysoundsarebirdcallsandthesoftnoise________________(当水缓缓推动草时草所发出的)

下述情况出现宫缩乏力时,可用催产素产的是

A、头盆不称
B、子宫不协调收缩
C、子宫颈水肿
D、低张性宫缩乏力
E、迟发性胎心减慢

IliveinthelandofDisney,Hollywoodandyear-roundsun.Youmaythinkpeopleinsuchaglamorous,fun-filledplacearehappierthanothers.Ifso,youhavesomemistakenideasaboutthenatureofhappiness.

Manyintelligentpeoplestillequatehappinesswithfun.Thetruthisthatfunandhappinesshavelittleornothingincommon.Funiswhatweexperienceduringanact.Happinessiswhatweexperienceafteranact.Itisadeeper,moreabidingemotion.

Goingtoanamusementparkorballgame,watchingamovieortelevision,arefunactivitiesthathelpusrelax,temporarilyforgetourproblemsandmaybeevenlaugh.Buttheydonotbringhappiness,becausetheirpositiveeffectsendwhenthefunends.

IhaveoftenthoughtthatifHollywoodstarshavearoletoplay,itistoteachusthathappinesshasnothingtodowithfun.Theserich,beautifulindividualshaveconstantaccesstoglamorousparties,fancycars,expensivehomes,everythingthatspells“happiness”.Butinmemoiraftermemoir,celebritiesrevealtheunhappinesshiddenbeneathalltheirfun:depression,alcoholism,drugaddiction,brokenmarriages,troubledchildrenandprofoundloneliness.

Askabachelorwhyheresistsmarriageeventhoughhefindsdatingtobelessandlesssatisfying.Ifhe’shonest,hewilltellyouthatheisafraidofmakingacommitment.Forcommitmentisinfactquitepainful.Thesinglelifeisfilledwithfun,adventureandexcitement.Marriagehassuchmoments,buttheyarenotitsmostdistinguishingfeatures.

Similarly,couplesthatchoosenottohavechildrenaredecidinginfavorofpainlessfunoverpainfulhappiness.Theycandineoutevertheywantandsleepaslateastheywant.Coupleswithinfantchildrenareluckytogetawholenight’ssleeporathree-dayvacation.Idon’tknowanyparentwhowouldchoosethewordfuntodescriberaisingchildren.

Understandingandacceptingthattruehappinesshasnothingtodowithfunisoneofthemostliberatingrealizationswecanevercometo.Itliberatestime:nowwecandevotemorehourstoactivitiesthatcangenuinelyincreaseourhappiness.Itliberatesmoney:buyingthatnewcarorthosefancyclothesthatwilldonothingtoincreaseourhappinessnowseemspointless.Anditliberatesusfromenvy:wenowunderstandthatallthoserichandglamorouspeopleweweresosurearehappybecausetheyarealwayshavingsomuchfunactuallymaynotbehappyatall.

1.Whichofthefollowingistrue?

A.Funcreateslong-lastingsatisfaction.

B.Funprovidesenjoymentwhilepainleadstohappiness.

C.Happinessisenduringwhereasfunisshort-lived.

D.Funthatislong-standingmayleadtohappiness.

2.Totheauthor,Hollywoodstarsallhaveanimportantroletoplaythatisto__.

A.ritememoiraftermemoirabouttheirhappiness.

B.tellthepublicthathappinesshasnothingtodowithfun.

C.teachpeoplehowtoenjoytheirlives.

D.bringhappinesstothepublicinsteadofgoingtoglamorousparties.

3.Intheauthor’sopinion,marriage___.

A.affordsgreaterfun.

B.leadstoraisingchildren.

C.indicatescommitment.

D.endsinpain.

4.Coupleshavinginfantchildren___.

A.areluckysincetheycanhaveawholenight’ssleep.

B.findfunintuckingthemintobedatnight.

C.findmoretimetoplayandjokewiththem.

D.derivehappinessfromtheirendeavor.

5.Ifonegetthemeaningofthetruesenseofhappiness,hewill__.

A.stopplayinggamesandjokingwithothers.

B.makethebestuseofhistimeincreasinghappiness.

C.giveafreehandtomoney.

D.keephimselfwithhisfamily.

肛查了解胎头下降程度的骨性标志是

A、骶岬
B、骶骨
C、坐骨结节
D、坐骨棘
E、坐骨切迹

Wouldhehaveseenyouifyouhadn’t_____tohim?

A、intended
B、waved
C、expressed
D、debt
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