Weeachhaveamemory.That’swhywecanstillrememberthingsafteralongtime.Somepeoplehaveverygoodmemoriesandtheycaneasilylearnmanythingsbyheart,butsomepeoplecanonlyrememberthingswhentheysayordothemagainandagain.Manyofthegreatmenoftheworldhavegotsurprisingmemories.Agoodmemoryisagreathelpinlearningalanguage.Everybodylearnshismotherlanguagewhenheisasmallchild.Hehearsthesounds,remembersthemandthenhelearnsspeak.Somechildrenarelivingwiththeirparentsinforeigncountries.Theycanlearntwolanguagesaseasilyasonebecausetheyhear,rememberandspeaktwolanguageseveryday.Inschoolitisnotsoeasytolearnaforeignlanguagebecausethepupilshavesolittletimeforit,andtheyarebusywithothersubjects,too.Butyourmemorywillbecomebetterandbetterwhenyoudomoreandmoreexercises.51.Somepeoplecaneasilylearnmanythingsbyheartbecause_________.

52.Everybodylearnshismotherlanguage_________.

53.Beforeachildcanspeak,hemust_________.

54.Inschoolthepupilscan’tlearnaforeignlanguagewellbecause_________.

55.Yourmemorywillbecomebetterandbetter_________.

Anexpensivecarspeedingdownthemainstreetofasmalltownwassooncaughtupwithbyayoungmotorcyclepoliceman.Ashestartedtomakeouttheticket,thewomanbehindthewheelsaidproudly,“Beforeyougoanyfurther,youngman,Ithinkyoushouldknowthatthemayorofthiscityisagoodfriendofmine.”Theofficerdidnotsayaword,butkeptwriting.“IamalsoafriendofchiefofpoliceBarens,”continuedthewoman,gettingmuchmoreangryeachmoment,Stillhekeptonwriting.“Youngman,”shepersisted,“IknowJudgeLawsonandStateSenator(参议员)Patton.”Handingthetickettothewoman,theofficeraskedpleasantly,“Tellme,doyouknowBillBronson.”“Why,no,”sheanswered.“Well,thatisthemanyoushouldhaveknown,”hesaid,headingbacktohismotorcycle,“IamBillBronson.”56.Thepolicemanstoppedthecarbecause_____.

57.Thewomanwasgettingmoreangryeachmomentbecause_____.

58.Thepolicemanwas_______.

59.Thewomanwas_______.

60.Thepoliceman_______.

目前，我国乡村法治建设还存在哪些问题（）

NBA比赛为40分钟，分四节进行，每节10分钟。

中国的生产经济文化的基础是？

板材隔墙平整度检查一般用2M的靠尺检查。

下列结构部件中，不属于喷气发动机的是（）。