诊断鼻旁窦骨瘤的主要依据是()。
A.症状
B.体征
C.病理学检查
D.影像学检查
E.病史
参考答案:D
— have you stayed in Shanghai?
— For about seven days.
A. How soon B. How long C. How often
麦芽糖属于()
A.单糖
B.双糖
C.寡糖
D.多糖
E.糖原