一位分析师试图精确计算某普通债券在收益率变动后的价格变化，该分析师发现该债券的收益率增加1%时，其价格实际下跌了12%。假设该债券的收益率降低1%，那么该债券的价格变动额最有可能是（   ）。

患者，男，50岁。半年来经常突发胸骨后疼痛，有窒息感，持续1～5分钟，休息后迅速缓解。心电图示ST段下移及T波倒置。应首先考虑的是（    ）

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.

Which word below best describes the author's stance？

张老师根据自己班幼儿的情况，为解决班内幼儿不喜欢与他人交流的问题，建立和谐融洽活跃的班级氛围，自主开发了“活跃课堂”的班级课程。这体现了教师（  ）。

平均总资产回报率指标反映了银行总资产获取收益的能力。

水利工程施工现场照明使用的行灯电源电压最高为（   ）V。

降低颅内压的治疗最有效易行的方法是 （   ）。

基金从业人员树立投资者利益至上、（  ）利益至上的道德标准，可以从根本上解决执业过程中的潜在利益冲突。

(   )是个体的人生活动对社会，他人所具有价值。

一般而言，理财子公司发行的理财产品托管人主要由（  ）担任。

材料消耗定额是指在合理和节约使用材料的条件下，生产单位合格产品所必须消耗的一定规格的材料、成品、半成品和水、电等资源的(   )标准。