女性，33岁。凌晨两点突发喘憋，感呼气困难。来院查体：T 37.3℃，P 130次/分，端坐呼吸。只能单字表达；双肺满布哮鸣音。PaO₂ 55mmHg，PaCO₂ 50mmHg。该患者属于哮喘

糖尿病病人出现尿糖的原因是

对腹外疝患者进行出院指导，正确的内容是（  ）

某男，57岁。因发热、恶寒、咳嗽、喷嚏， 肢体酸痛等不适症状就诊，相关检查显示白细 胞计数( WBC) 3.5×10⁹/L, 中性粒细胞百分 数49%。 自述其单位多人出现发热症状。中性粒细胞百分数(50%～70%)是临床诊断感染常见的检测指标之一。此患者临床诊断为（ ）

患者，女，40岁。双乳肿胀疼痛，月经前加重，经后减轻，肿块大小不等，形态不一，伴乳头溢液，月经不调，腰酸乏力，舌淡苔白，脉弦细，其证候是（   ）

以下的金融资产中不具有与期权类似的特征的是（　　）。[清华大学]

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.

Which of the following would be the best title for the text?

治疗痹证中的行痹，宜选用的中成药是（ ）

下列不属于场内证券交易结算原则的是（  ）。

丁丁为了得到玩具动手打了乐乐，这种行为属于(    )。