路老师在进行科学课教学的过程中，经常是先给学生讲解知识，然后带学生到植物园里去观察。这样可以使学生既有课堂知识的学习，又有实际的感性认识。这体现了路老师遵循了教育过程的（  ）。

数据可视化可以便于人们对数据的理解。                       (  )

请阅读  Passage 1,完成第  21~25小题 。

Passage 1

First two hours, now three hours-this ishow far in advance authorities are recommending people show up to catch adomestic flight, at least at some major U.S. airports with increasingly massivesecurity lines.

Americans are willing to toleratetime-consuming security procedures in return for increased safety. The crash ofEgyptAir Flight 804, which terrorists may have downed over the Mediterranean Sea,provides another tragic reminder of why. But demanding too much of airtravelers or providing too little security in return undermines public supportfor the process. And it should: Wasted time is a drag on Americans ' economicand private lives, not to mention infuriating.

Last year, the Transportation SecurityAdministration (TSA) found in a secret check that undercover investigators wereable to sneak weapons-both fake and real-past airport security nearly everytime they tried. Enhanced security measures since then, combined with a rise inairline travel due to the improving economy and low oil prices, have resultedin long waits at major airports such as Chicago ' s O ' Hare International. Itis not yet clear how much more effective airline security has become-but thelines are obvious.

Part of the issue is that the governmentdid not anticipate the steep increase in airline travel, so the TSA is nowrushing to get new screeners on the line. Part of the issue is that airportshave only so much room for screening lanes. Another factor may be that morepeople are trying to overpack their carry-on bags to avoid checked-baggagefees, though the airlines strongly dispute this.

There is one step the TSA could take thatwould not require remodeling airports or rushing to hire: Enroll more people inthe PreCheck program. PreCheck is supposed to be a win-win for travelers andthe TSA. Passengers who pass a background check are eligible to use expectedscreening lanes. This allows the TSA to focus. on travelers who are higherrisk, saving time for everyone involved. The TSA wants to enroll 25 millionpeople in PreCheck.

Ithas 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. Upcomingreforms might bring the price to a more reasonable level. But Congress shouldlook into doing so directly, by helping to finance PreCheck enrollment or tocut costs in other ways.

The word "expedited" (Para. 5) is closest in meaning to______.

根据《建设工程质量管理条例》，组织有关单位参加建设工程竣工验收的义务主体是(  )。

某企业借款1500万元，期限2年，年利率8％，按年复利计息，到期一次性还本付息，则第2年应计的利息为（   ）万元。

注射用美洛西林/舒巴坦，规格为1.25g(美洛西林1.0g，舒巴坦0.25g)，成人静脉给药符合单室模型，美洛西林的表观分布容积V=0.5L/kg。关于复方制剂美洛西林与舒巴坦的说法，正确的是（   ）

孙小姐为某企业员工，2013年和2014年月平均工资分别是9500元和10000元，2013年当地职工月平均工资为3000元。2014年每月孙小姐个人缴纳的基本养老金是（  ）。

下列可在基因克隆技术中生成的物质是

酶促反应研究的是

收单业务是银行卡业务的基础，包括POS收单业务、 二维码收单业务和线上收单业务。（  ）

以下不属于无源光器件的是(）