患儿，2个月。母乳喂养，腹泻近1个月，大便7～8次/日，呈蛋花汤样，不伴发热，精神、食欲尚可，外观虚胖，面部可见湿疹，体重5.5kg。该小儿最可能的诊断是(    )

未矿化的细菌性沉积物，牢固的黏附于牙面或修复体表面

（   ）是平时呈开启状态，火灾时当管道内气体温度达到280℃时自动关闭，在一定时间内能满足耐火稳定性和耐火完整要求，起阻火隔烟作用的阀门。

患者，女，56岁。既往有高血压病史10余年，因情绪激动后出现剧烈头痛、呕吐。入院查体：血压220/140mmHg,昏迷，瞳孔散大。医嘱给予输注甘露醇，其目的是（）

目前国内最常见的细菌性痢疾病原菌是

下列各项中，反映"预计负债"项目期末余额的财务报表是（  ）。

2023年12月1日，甲公司与乙公司签订一份为期3个月的劳务合同，合同价款为120万元，增值税税额为10.8万元，当日收到乙公司预付合同款50万元。
2023年12月31日，该劳务合同的履约进度为40%，符合按履约进度确认收入的条件。不考虑其他因素，甲公司2023年12月应确认的劳务收入为（）万元。

关于尽职调查的作用，下列说法不正确的是（    ）。

某单位在职工体检中发现员工高血压和超重的检出率较高 。医务人员为该单位制定的健康教育与健康促进干预活动主要包括调整食堂的膳食结构、制定工间操制度和组织文体活动等 。这些干预活动主要是

Passage1

When it comes to airline travel, perhaps nothing has revolutionized the passenger experience more than airline apps. Indeed, they' re becoming so ubiquitous that more than 50 percent of U.S travelers have at least one airline app installed on their smart device, according to travel industry research firm Phocuswright.

Maybe that's because apps make travel easier, and often are more functional than a kiosk or even an airline's own website. Passengers report that they' re often more quickly informed of a flight cancellation or gate change than an airline employee. Not all airline apps are created equal, but in general you can use an app to check in for a flight, change seats, and request and pay for an upgrade. Road warriors in particular appreciate mobile boarding passes and the ability to track their flights. Many airlines now offer free onboard streaming entertainment via apps. The Delta Air Lines app even allows users to track their bags, from check-in to carousel, while the Air France app lets passengers download magazines and newspapers from the airline's library 30 hours prior to departure.

But what if you are traveling extensively on more than one airline? Global airline alliances have their own apps that allow you to view flights for all member airlines and their affiliates, including code share flights. In general, you can find flight schedules for all member airlines and track member airline flights. Airport information is available, as are details about local weather at the destination. Where's the nearest airport lounge? The app will locate it for you.

The Sky Team airline alliance app goes a step further by letting its SkyPriority members (Sky Team Elite Plus members and customers with first and business-class tickets) find out exactly which SkyPriority services-including priority check in and baggage drop off, as well as access to priority security lanes and boarding lanes-are available at individual airports.

You' ll find that some alliance app features are available through multiple channels of communication. For example, Sky Team members have formed their own online community by sharing traveler tricks and airport tips accessible through a variety of channels, including the app, Sky Team's website, Facebook page and a dedicated tips site. Sky Team's YouTube page features travel tips from regional celebrities.

Just as airlines seem to have conquered social media, another method of communicating with travelers has just arrived. KLM Royal Dutch Airlines is the first carrier to sign up for Facebook's Messenger chat app. KLM flyers can automatically receive itineraries, flight updates, check-in notifications, boarding passes and rebook flights and communicate with customer service, all from Facebook Messenger. Messenger for Business was launched so that customers-in this case, passengers-can transact business over the messaging app in a single communication thread. Roughly 80 percent of passengers on planes traveling within the U.S. have the Messenger app installed on their smartphones, according to Facebook.

Clearly, mobile apps and social media have transformed our digital lives. Airlines favor apps and other technologies because they get customers out of airport lines and off phone lines. Through their smart devices, travelers now have untethered access to travel information. A few quick taps can supply individuals with information never dreamed possible even a decade ago. And with more people using smartphones as their primary computing device, and as more people own cellphones globally, people expect technology-driven methods of communication and convenience to accelerate. Whether you' re high-tech or not, you must admit that having immediate access to the information you need sure beats getting a busy signal on a toll-free phone line.

What makes mobile apps appealing to travelers according to the last paragraph？

在职业中毒诊断中具有十分重要意义的内容是