刘敏背诵课文时发现了一个有趣的现象：课文开头和结尾部分容易记住，而中间部分难记。可以解释这一现象的遗忘原理是（     ）

下列症状中可在阴黄中出现的是

A市B区卫生局委托C超市对在该超市内随地吐痰的人处以罚款，某日D某被超市处以50元罚款，D某认为其罚款违法，则D某可以向（   ）提出赔偿。

某债券面值100元，票面利率6%，期限10年，每年付息。如果到期收益率为8%，则其发行价格（  ）。

患者，男，38岁。因“发作性喘息”3个月入院，发作时憋喘、全身大汗、全身发绀、端坐不能平卧，肺部可闻及哮鸣音。诊断为支气管哮喘，静脉滴注地塞米松。
患者支气管哮喘急性发作，此时应给予的治疗是

体内细胞色素C直接参与的反应是：

患者，女，30岁。患口腔溃疡，应用甲硝唑口腔粘贴片治疗时，最合理的给药方案是

某运送液化石油气的轨道列车，在运送过程中遇到突发泥石流，盛装液化石油气的罐体被岩石砸中并起火，高温烘烤造成罐内压力急剧升高，发生第一次爆炸，将罐体炸至200m外的村庄，大量的液化石油气泄漏并汽化，遇明火产生第二次爆炸。根据《企业职工伤亡事故分类》（GB6441），两次爆炸的事故类型分别为（ ）

根据《证券公司为期货公司提供中间介绍业务试行办法》，下列关于证券公司为期货公司介绍客户时的做法，错误的是（  ）。

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______.