下列情形中，导致可移动文物所有权发生改变的是（   ）。

李老师在上课期间遇到有学生在捣乱，他能及时发现问题并妥善处理问题，但是李老师在备课时遇到一些问题却很容易放弃。由此可见李老师的气质类型属于(    ) 。

初产妇，28岁，足月妊娠，合并风湿性心脏病，心功能2级。检查枕左前位，胎心率正常，无头盆不称，决定经阴道分娩，其产程处理，下列选项正确的是

在质押期间，（   ）依法有权收取质物所生的天然孽息和法定孽息。

小儿脾虚泄泻的首选方剂是（   ）。

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.

One problem with the PreCheck program is_________

国别风险敞口统计分析系统和限额管理系统是国别风险管理的重要IT支持系统，必要时国别评级和压力测试系统也将有助于国别风险管理的系统流程化和自动化。 （  ）

关于管家基因的叙述，下列哪项是不正确的？（）。

肉桂的主治病证不包括（）

下列各项，不属于古籍中有关子宫的名称是

下列关于主要市场或最有利市场的表述中，正确的是（   ）。