《血吸虫病防治条例》规定应在各自职责范围内开展血吸虫病防治工作的机构是（）.

A.医疗机构

B.疾病预防控制机构

C.动物防疫监督机构

D.植物检疫机构

E.水文监测机构

Amy scored the ________ points in swimming. I admire her very much. [ ]

A. worst

B. fewest

C. least

D. most