患者，男，45岁。患十二指肠球部溃疡并发幽门梗阻。医嘱中出现下列哪种药物时，护士应提出疑问（  ）

下列关于新课程中教师角色发生转变的表述，正确的是()

呈圆形或椭圆形的厚片，切面有的呈角质样，皮部棕红色，木部灰黄色或紫褐色的饮片是（ ）

肾阴虚型外阴瘙痒的主症是

某企业从国外进口一台机器设备，国外买价折合人民币90万元，运抵我国入关前支付的运费折合人民币3.8万元，保险费折合人民币4.6万元。入关后运抵企业所在地，取得运输公司开具的增值税专用发票注明运费1万元、税额0.09万元。该企业应缴纳进口关税（　　）万元。（关税税率为10%）

丹参醌属于（  ）

下列对百会穴的描述，不正确的是(   )

蛋白质生理价值大小主要取决于

在口腔健康调查中由于调查对象的代表性差，导致调查结果与实际情况不符，这属于

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 crash of EgyptAir Flight 804 is mentioned to_____.  .

患儿，男，7岁。睡中遗尿，白天小便频而量少，劳累后遗尿加重，面白气短，食欲缺乏（食欲不振），大便易溏，舌淡苔白，脉细无力。治疗除取主穴外，还应选用的是（     ）