6岁以下幼儿感染EBV后多呈（）
A.潜伏性感染
B.临床感染
C.病原携带状态
D.显性感染
E.隐性感染
参考答案：E
单词听写
1. Have you got the _______(最新的) news about Sally?
2. Pisa Leaning Tower is ______(闻名于世).
3. In many big cities, plenty of young people are used to the _____ (夜生活).
4. Webber had three _____(音乐剧) playing in London at one time.
5. I'm sorry- I can't sing these______ (日本的) songs.
原发性三叉神经痛的病因
A．急性上颌窦炎B．急性牙周炎C．鼻咽癌D．三叉神经疱疹病毒感染E．尚不清楚
