Listen to the dialogue about a school club and choose the activities mentioned in the dialogue.
A. help visitors with directions
B. clean off illegal small ads
C. help passengers at bus stops
D. promote refuse sorting
E. play with the children at an orphanage
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Listen to the dialogue between Jerry and Mollie about their volunteer experiences.Andchoosewhat Jerry do as volunteers.
A. help the elderly at a nursing home
B. give directions to visitors
C. do volunteer work at the train station
D. help the elderly move around in their wheelchairs
E. chat with the elderly at a nursing home
F. carry luggage for people who need help
结合反应以下列哪种最为常见
A. 葡糖醛酸
B. 乙酰基
C. 甲基
D. 硫酸根
E. 谷胱甘肽
急腹症在诊断未明了时，禁忌使用热疗的原因是
A. 体温升高
B. 可引起反射性的冠状动脉收缩
C. 导致腹泻
D. 妨碍炎症吸收
E. 掩盖病情
目前医学界逐渐以哪项作为死亡的标准
A. 脑死亡
B. 心跳停止
C. 呼吸停止
D. 各种反射消失
E. 瞳孔散大、对光反射消失
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