感受器
参考答案：
是能够感受体内、体外环境中的各种物理、化学刺激，并把它转变为神经冲动的神经末梢。
—It’s said that Zhao Benshan as well as Xiao Shenyang flew to ChongQing in his own plane .
—Really, When was ________?
—_________ was in April when the closing ceremony of the 2009 Three Gorges International Tourism Festival was held in FuLing, ChongQing.
A．that This
B．this It
C．it This
D．that It
男，78岁，进行性吞咽困难1月余，结合图像，最可能的诊断为（）
A.正常压迹
B.食管平滑肌瘤
C.食管癌
D.食管憩室
E.食管静脉曲张
