女，67岁，进行性吞咽困难半年，X线及CT检查如图，最可能的诊断为()

A．食管癌

B．食管憩室

C．食管炎

D．食管良性狭窄

E．食管静脉曲张

The number of the cranes is getting _____.  If we don’t help them, they will disappear _____a few years [     ]

A. fewer and fewer, in      

B. larger and larger, after

C. more and more, after    

D. smaller and smaller, in