萎缩性咽炎的病理变化有()。
A.黏膜下结缔组织增生
B.上皮下层淋巴细胞浸润
C.黏液腺分泌减少
D.咽侧索呈条索状
E.黏膜萎缩变薄
参考答案:C, E
After he lost his job, he _____ debt and eventually paid it off.
A.went into
B.got into
C.ran into
D.tried out
河北满城出土的“长信宫灯”,利用了虹吸的原理,是()时期的设计
A.汉代
B.宋代
C.元代
D.清代