男,25岁,头颅外伤2天,CT示蝶窦有气-液平面,颅内有积气,诊断为()。
A.急性筛窦炎
B.蝶窦炎
C.颅底骨折
D.化脓性蝶窦炎
E.额骨骨折
参考答案:C
—How do you know that she likes singing?
—I often hear her _____ after class. [ ]
A. to singing
B. sang
C. sing
D. sings
小儿易感冒、咳喘,原因主要是()
A.脾常不足
B.肺脏娇嫩
C.肾常虚
D.稚阳未充
E.稚阴未长