首先被消化的食物是[ ]
A．糖类
B．蛋白质
C．脂肪
D．水分
答案：A
The girl _____________ very well. [ ]
A. don't sing
B. doesn't sing
C. isn't sing
呋喃唑酮的用途应除外：
A．泌尿系感染B．霍乱C．痢疾D．肠炎E．消化性溃疡
