下列化学纤维织物中，最不易煅烧的是（）。
A.粘胶
B.维纶
C.氯纶
D.腈纶
参考答案：C
She wanted to make herself _____, but she failed. Others still didn't understand her. [ ]
A. to understand
B. understood
C. understanding
D. understands
男，75岁，吞咽困难3月，伴胸痛，结合图像，最可能的诊断为（）
A.贲门癌
B.胃底癌
C.食管下段癌
D.贲门癌侵及食管、胃底
E.食管胃底静脉曲张
