Lily is a good student, she _______ late for school.[ ]

A is hardly ever    

B. isn't never    

C. is often    

D. is always

剖腹手术时，下列哪种体位对呼吸循环功能影响最轻（）

A.头低位

B.截石位

C.仰卧位

D.侧卧位

E.抬高腰桥位