【名词&注释】
科学发展(scientific development)、以人为本(human-oriented)、胃蛋白酶原(pepsinogen)、肱二头肌(biceps brachii)、构建社会主义和谐社会(constructing socialist harmonious socie ...)、根本出发点(basic point of departure)、出发点和落脚点(start point and standpoint)、动作电位持续时间(action potential duration)、感光细胞层(photoreceptor layer)、肩关节运动(shoulder joint kinesitherapy)
[多选题]参与肩关节运动(shoulder joint kinesitherapy)的肌有（ ）
A. 三角肌
B. 肱二头肌
C. 肱三头肌
D. 胸大肌
E. 背阔肌
回答下面的题目 Every morning, kids from a local high school are working hard．They are making and selling special coffee at a coffee oaf6．They are also making a lot of money．These students can make up to twelve hundred dollars a day．They are selling their special coffee to airplane passengers．After the students get paid, the rest of the money goes to helping a local youth project．These high school students use a space in the Oakland airport．It is usually very crowded．Many people who fly on the planes like to drink the special coffee．One customer thinks that the coffee costs a lot but it is good and worth it．Most customers are pleasant but some are unhappy．They do not like it if the coffee cafe is not open for business．The students earn $6.10 an hour plus tips．They also get school credit while they learn how to run a business．Many of the students enjoy the work although it took some time to learn how to do it．They have to learn how to steam milk, load the pots, and add flavor．It takes some skill and sometimes mistakes are made．The most common mistake is forgetting to add the coffee．Based on the passage, it seems that the purpose of the cafe is to________
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