某年某中学体检，测得100名高一女生的平均身高=154cm，S=6.6cm，该校高一女生中身高在143～170cm者所占比重为（U0.0078=-2.42，U0.0475=-1.67）（）

A.90%

B.94.5%

C.97.5%

D.95%

E.99%

________from the outside by the flood for months,the villagers are short of everything. [ ]

A. Cut away  

B. Cut down  

C. Cut off  

D. Cut out