单选题：Ithasbeenquitehardforresearcherstofigureouthowinsecurethepas

题目内容：

Ithasbeenquitehardforresearcherstofigureouthowinsecurethepasswordsare.

参考答案：

答案解析：

A.In2012,theUnitedNationsWorldHealthAssemblyadvocatedasignif

A.In2012,theUnitedNationsWorldHealthAssemblyadvocatedasignificantnewhealthgoal:

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Aftergettingafinancedegree,MsStylesnowhasagoodjobwhichmakesiteasytopayoffherstu

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MigrationisactuallyneverthesameaswhattheAmericanpeoplethinkitis.

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TherearelessandlesspeopleliveinChinatownsinSanFranciscoandNewYork.

分类：英语四级题型：单选题

LaborerswithoutskillsaregoingbacktoChinafortheycanhavehigherwagesandmoreoptions

分类：英语四级题型：单选题