关于生活常识中所蕴含的原理，下列解释正确的是______。

Questions 46～48 refer to the following letter

在中国说起粮食浪费，很多人都自然而然地认为浪费的粮食大多是在餐桌上

购买力平价可以分为______。

Thishypothesisstatesthatenvironmentsthataretoocleanmayactuallymakethe______systemdevelopoversensitiveresponses.

——这是资金融通不断扩大的4年。融资瓶颈是实现互联互通的突出挑战

国际收支平衡表是从哪种角度反映各项交易?______

资产负债表中，各类负债是按______顺序排列的。

为了辨别一颗恒星周围的昏暗天体，天文学家现在通常使用一个不透光的小圆盘或者光栅除去来自恒星的光线

设有如下简单经济模型： Y=C+I+G C=80+0.75Yd Yd=Y-T T=-20+0.2Y I=50+0.1Y G=200 式中

格雷欣法则是在金银复本位制中出现的现象。

Whataretheroadsnottakenbecausestudentsmusttakeoutloansforcollege?Foronething,itappearsthatpeoplewithstudentloansarelesslikelytostartbusinessesoftheirown.Anewstudyhasfoundthatareaswithhigherrelativegrowthinstudentdebtshowlowergrowthintheformationofsmallbusinesses.Thecorrelationmakessense.Peoplenormallyhaveonlyacertainamountof"debtcapacity".Whenstudentsuseuptheir"debtcapacity"onstudentloans,theycan'tcommititelsewhere.Giventheimportanceofanentrepreneur'spersonaldebtcapacityinfinancingastart-upbusiness,studentloandebt,whichcannotbedischargedviabankruptcy,canhavelastingeffectslaterinlifeandmayimpacttheabilityoffuturesmall-businessownerstoraisecapital.Consideringthat60percentofjobsarecreatedbysmallbusiness,"ifyoushutdowntheabilitytocreatenewbusinesses,you'regoingtoharmtheeconomy,"saidBrentAmbrose,aprofessorofriskmanagementatPennsylvaniaStateUniversity.Studentloandebtalsoappearstobeaffectinghomeownershiptrends.AccordingtoresearchbytheFederalReserveBankofNewYork,fewer30-year-oldsingeneralhaveboughthomessincetherecession,butthedeclinehasbeensteeperforpeoplewithahistoryofstudentloandebtandhascontinuedevenasthehousingmarkethasrecovered.Studentloandebtmayalsoaffectcareerchoices.Havingacollegeloanappearstoreducethelikelihoodthatpeoplewillchoosealow-payingpublic-interestjob,accordingtoa2011studybyJesseRothsteinoftheUniversityofCalifornia,Berkeley,andCeciliaElenaRouseofPrinceton.Theyarrivedattheirconclusionbystudyingawell-offuniversitythatbeganmeetingstudents'financialneedsthroughacombinationofwork-studymoneyandgrants,anddispensingwithloansaltogether.Beforethenewpolicystartedintheearly2000s,studentsweremorelikelytochoosewell-paidprofessionslikeinvestmentbankingandconsulting.Afterthepolicytookeffect,morestudentschosejobsinareasliketeachingandthenonprofitsector.Inmanycases,thechoicesthatstudentborrowersmakearejustcommonsense,basedonthefinancialrealitiestheyface.Ifsocietywantstochangetheskewingeffectofstudentloans,sometoughdecisionsaboutallocatingeducationalresourcesmaywelllieahead.

旅行社刚刚为三位旅客预定了飞机票。这三位旅客是荷兰人比尔、加拿大人伯托和英国人丹皮

______股份相对固定，一般不向投资者增发新股或赎回旧股。

Questions71～75refertothefollowinginformation.Familycaregiversofseniorsshouldbecognizantofstressasitrelatestotheirlovedones.Knowingthesignsanddetectingthemearlyoncanhelpseniorslearntorecognizestressfactorsandtotakestepstoalleviatetheeffectsstresscancause.Activitiessuchasyoga,walkingandotherphysicalexercisesdesignedforseniorsaregreattensionrelievers.Manyseniorsenjoythebenefitsoftaichiclassesgearedtotheirphysicalabilities.TheMayoClinicsupportsthisgentleformofmartialartsasawaytorelievestressandhelpotherhealth-relatedconditions.Someseniorsareunabletoparticipateinphysicalactivities,butthereareotherwaystoreducestress.Eatingahealthy,well-balanceddietandgettingagoodnight'ssleepcankeepstressatbay.Joininganon-physicalgroupactivity,suchasabridgecluborvolunteering,offerssocializationandachancetoclearthemindofdailyresponsibilities.Therearealsolocalagenciesthatcanhelpwithtasksthatmightcauseunduestressforseniors.Respitecareorganizationscanhelpwithhouseworkorgroceryshopping.Religiousorganizationsoftenhavegroupswhocanassistseniorswithgardworkorotherstrenuoustasksaroundthehome.Thefactthatstressisapartoflifedoesnotmeanthatoverwhelmingstressisaburdenseniorshavetoshoulderallalone.Withhelp,seniorscancombatstressanditsnegativeeffects.Spendtimehelpingseniorsdeterminewhatburdenstheyface.Helpthemplanwayssuitedtotheirlifestylesthatarenotonlyfunbutthatcanminimizethepressuresstresscancause.Bydoingso,thequalityoflifeseniorsexperiencecanincrease,furtherpavingthewayforthemtoleadindependentliveswithinthecomfortoftheirownhomes.

不论采用何种账务处理程序，编制财务报表所需资料最终来源于______。

请从所给的四个选项中，选择最合适的一个填入问号处______。

企业正式下达执行的预算，执行部门一般不能调整。但是，市场环境、政策法规等发生重大变化，将导致预算执行结果产生重大偏差时，可经逐级审批后调整。

除最少的情况外，刻意练习与技能高低的确都是有关联的。换而言之，相较于说自己没怎么练习的人

恩格尔系数是衡量宏观经济状况的一个重要指标。下列关于恩格尔系数的说法，正确的是______