C．A group of obese patients in a Michigan hospital.

　　D．The most obese group of workers at General Motors.

　　解析：选A　细节理解题。根据第二段第一句“Feifei Wang ...General Motors.”可知，研究对象是一家汽车制造公司的员工。故A项正确。

　　4．How much could General Motors save a year according to Wang’s study?

　　A．$790,000.　B．$7.1 million.

　　C．$52.67 million.

　　D．$11.75 million.

　　解析：选B　细节理解题。根据第二段最后一句“Company­wide, the potential savings could reach$7.1 million per year, according to their report ...”可知，B项正确。

　　B

　　(2016·秦皇岛市高三质检)

　　Shark Keeper

　　Get close and very personal with the Aquariums largest exhibit and its biggest predators (捕食性动物) with the new Shark Keeper program! After each participant prepares to feed the sharks and other fishes in the 120,000­gallon Lost City of Atlantis Exhibit, they will then get the once­in­a­lifetime chance to feed our sand tiger sharks! Participants will also experience a tour of other behind­the­scenes animal care work areas and take home a real­life shark tooth.

　　Program Outline：

　　★Greeting from the educator

　　★Educational program: misunderstandings about sharks, biology, pictures, shark tooth comparisons, animal overviews, what to expect during the experience.

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