HSV-I在成年人可引起
A．水痘
B．手足口病
C．疱疹性咽峡炎
D．单纯疱疹
E．艾滋病
参考答案：D
He is interested in ______ English songs. [ ]
A. to collect
B. collect
C. collecting
D. collected
旅行社设立分社应具备两个条件：一是______；二是______。
