既可直刺、深刺，又可针刺放血的腧穴是( )
A．委中B．瞳子髂C．承泣D．肩井
参考答案：A
From their ________ on the top of the TV Tower, visitors can have a better view of the city.
A．stage
B．position
C．permission
D．radiation
3周前刚注射过丙种球蛋白的儿童要注射麻疹疫苗应推迟（）
A.4周
B.2周
C.3个月
D.6个月
E.2个月
