高血压病人做到下列几条措施可以减少并发症，提高生命质量

A．限制钠摄入

B．减轻体重

C．运动

D．坚持合理服药

E．病人定时自测血压

Jolene began building a picket fence by planting stakes in a row; the stakes were evenly spaced. After planting the first 10 stakes, Jolene measured the length of the row and found that the row was 27 feet long. She continued the row by planting another 10 stakes, then measured the length of the entire row. How many feet long was the row of stakes Jolene had planted

A．37

B．54

C．57

D．60

E．(E) 81