—What's the time?

—______.[ ]

A. It's thirty to eight    

B. It's at seven thirty

C. It's seven past thirty  

D. It's half past seven

患者男性，30岁，因“希望吸脂减肥”来诊。患者身高175cm，体重85kg。

体重指数的正常值是（）

A.16.5～18.9kg/m²

B.22.5～25.9kg/m²

C.20.5～22.9kg/m²

D.18.5～24.9kg/m²

E.24.5～26.9kg/m²