Passage 6
First two hours,now three hours—this is how far in advance authorities are recommending people show up to catch a domestic flight,at least at some major U.S.airports with increasingly massive security lines.
Americans are willing to tolerate time-consuming security protocols in return for increased safety.The crash of Egypt Air Flight 804,which terrorists may have downed over the Mediterranean Sea,provides another tragic reminder of why.But demanding too much of air travelers or providing too little security in return undermines public support for the process.And it should:Wasted time is a drag on Americans'economic and private lives,not to mention infuriating.
Last year,the Transportation Security Administration（TSA）found in a secret check that undercover investigators were able to sneak weapons—both fake and real—past airport security nearly every time they tried.Enhanced security measures since then,combined with a rise in airline travel due to the improving economy and low oil prices,have resulted in long waits at major airports such as Chicago's O’Hare International.It is not yet clear how much more effective airline security has become—but the lines are obvious.
Part of the issue is that the government did not anticipate the steep increase in airline travel,so the TSA is now rushing to get new screeners on the line.Part of the issue is that airports have only so much room for screening lanes.Another factor may be that more people are trying to overpack their carry-on bags to avoid checked-baggage fees,though the airlines strongly dispute this.
There is one step the TSA could take that would not require remodeling airports or rushing to hire:Enroll more people in the PreCheck program.PreCheck is supposed to be a win-win for travelers and the TSA Passengers who pass a background check are eligible to use?expedited?screening lanes.This allows the TSA to focus on travelers who are higher risk,saving time for everyone involved.TSA wants to enroll 25 million people in PreCheck.
It has not gotten anywhere close to that,and one big reason is sticker shock:Passengers must pay$85 every five years to process their background checks.Since the beginning,this price tag has been PreCheck’s fatal flaw.Upcoming reforms might bring the price to a more reasonable level.But Congress should look into doing so directly,by helping to finance PreCheck enrollment or to cut costs in other ways.
The TSA cannot continue diverting resources into underused PreCheck lanes while most of the traveling public suffers in unnecessary lines.It is long past time to make the program work.
Which of the following would be the best for the text?（ ）
选项A：更少的检查、更多的安全。表述与原文意思相反，原文说检查更多为了更多的安全；选项B：预先检查-迟来的解决方案。文章认为PreCheck没有从根本上解决旅客滞留的问题，所以表达也不准确；选项D的表述只是文章的一部分。浏览全文可知全文都是在围绕安检导致旅客滞留，所以C选项更能概括全文。故正确答案是选项C。
根据《中华人民共和国中国人民银行法》的规定，我国货币政策的最终目标是（ ），并以此促进经济增长。
箱子里面有红、白两种玻璃球，红球数比白球数的3倍多两个，每次从箱子里取出7个白球、15个红球。如果经过若干次以后，箱子里只剩下3个白球、53个红球，那么，箱子里原有红球比白球多多少个?
将自然数1~100分别写在完全相同的100张卡片上，然后打乱卡片，先后随机取出4张，问这4张先后取出的卡片上的数字呈增序的几率是多少？（）
对于债券利率的风险结构，描述正确的有（ ）。
市场经济体制下，财政具有的职能有( )。
（ ）决定着生产关系。
左边给定的是纸盒的外表面，下列哪一项能由它折叠而成？（ ）
货币制度最基本的内容是规定（ ）。
如果一国货币汇率上升，即对外升值，就可能会导致（ ）。
（）
