下列哪种疾病，有“龛影”表现（）
A.肠结核
B.食管癌
C.胃溃疡
D.食管憩室
E.以上都有
参考答案：E
the teacher’s suggestion, Tom finally found a way to settle the problem .
A．Following
B．To follow
C．Follow
D．He followed
回收精溶剂油的质量指标是什么？
