题目内容
《社会保险法》明确了社会保险的主要功能有（）
查看答案
搜索结果不匹配？点我反馈
更多问题
电路交换（）会话层（）超文本传输协议（）表示层（）分组交换（）应用层（）文件传输协议（）报文交换（）电子邮件协议（）
ThenumberofspeakersofEnglishinShakespeare’stimeisestimated(估计)tohavebeenaboutfivemillion.Todayitisestimatedthatsome260millionpeoplespeakitasanativelanguage,mainlyintheUnitedStates,Canada,GreatBritain,Ireland,SouthAfrica,AustraliaandNewZealand.InadditiontothestandardvarietiesofEnglishfoundintheseareas,thereareagreatmanyregionalandsocialvarietiesofthelanguageaswellasvariouslevelsofusagethatareemployedbothinitsspokenandwrittenforms.Infact,itisimpossibletoestimatethenumberofpeopleintheworldwhohaveacquiredanadequate(足够的)workingknowledgeofEnglishinadditiontotheirownlanguages.ThepurposeforEnglishlearningandthesituationsinwhichsuchlearningtakesplacearesovariedthatitisdifficulttoexplainandstillmoredifficulttojudgewhatformsanadequateworkingknowledgeforeachsituation.ThemainreasonforthewidespreaddemandforEnglishisitspresent-dayimportanceasaworldlanguage.Besidesservingtheindefiniteneedsofitsnativespeakers,Englishisalanguageinwhichsomeofimportantworksinscience,technology,andotherfieldsarebeingproduced,andnotalwaysbynativespeakers.Itiswidelyusedforsuchpurposesasmeteorologicalandairportcommunications,internationalconferences,andthespreadofinformationovertheradioandtelevisionnetworksofmanynations.Itisalanguageofwidercommunicationforanumberofdevelopingcountries,especiallyformerBritishcolonies.Manyofthesecountrieshavemultilingualpopulationsandneedalanguageforinternalcommunicationinsuchmattersasgovernment,commerce,industry,lawandeducationaswellasforinternationalcommunicationandforentrancetothescientificandtechnologicaldevelopmentsintheWest.WhattypeofdevelopingcountrieswouldbemostlikelytouseEnglish
如果在文本框中键入字符时，只显示某个字符，如星号（*），应设置文本框的（）属性。
下列属于冠心病一级预防内容的是（）
微信支付 
支付宝支付