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问题 单项选择题

男性，55岁，因吞咽困难3个月就诊，拟诊为食管癌。下列检查对食管癌的诊断无帮助的是

A．内镜检查

B．食管X线钡餐检查

C．食管黏膜脱落细胞学检查

D．食管滴酸试验

E．食管CT扫描

答案

参考答案：D

选择题

A cancer-stricken British teenager said on Thursday she ______ by messages of support from around the world after writing an online “Bucket List” of things she wanted to do before dying.

A．had been moved

B．has been moved

C．is being moved

D．would be moved
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解答题
一块长方形地，长49米，宽是长的
5
7
，这块地的面积是多少平方米？
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