下列症状哪些不是上颌窦癌的早期临床表现()
A.鼻塞
B.张口困难
C.面颊部麻木
D.鼻涕带血
E.疼痛
参考答案:B
解析:上颌窦癌早期不侵及周围组织,不会引起张口受限
There are four underground lines in Beijing, and several lines are under _______(建设)
—Do you know _____ now, Steven?
—In Australia.
A.Where Sarah lived
B.where did Sarah live
C.where Sarah lives
D.where does Sarah live