C／S结构即大家熟知的客户机/___________结构。
参考答案：服务器
In Australia, surfing is a popular sport among young people ________ they can seek excitement and
adventure.[ ]
A. that
B. which
C. where
D. how
硝酸甘油对下列哪类血管扩张几乎没有作用
A．小动脉B．小静脉C．冠状动脉的输送血管D．冠状动脉的侧支血管E．冠状动脉的小阻力血管
