搜题请搜索小程序“爱下问搜题”
问题 单项选择题

该病的发病机制主要是

A．食管对反流物清除功能削弱
B．胃酸、胃蛋白酶所致的食管黏膜损伤
C．胆汁所致的食管黏膜损伤
D．食管下段括约肌张力增高
E．食管下段括约肌张力降低

答案

参考答案：E

完形填空

短文填空 先读下面的短文，掌握其大意，然后根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整。所填单词在题后横线上必须完整写出。

(本大题5分，每格0.5分)

True friends are hard to find. Often you thought you could believe in someone, b     1 later he or she may let you down.

A true friend is someone who will always be there for you. T  2 good times or bad times, they will stand by your side. They will not l 3 you alone when things get difficult. They will a 4 you without trying to change you. A friend will b 5 new and exciting things into your life and make it richer.

True friends will keep your worst secrets as you will keep t 6 . They will be honest and you can always believe in them. If you talk to someone who you believe in, you don’t have to worry about what you may say. We can enjoy this freedom only with friends.

Friendship is a two-way street. To find a true friend and keep the friendship between you, you must do the same thing as w 7 . Be there for your friends when they are in need and share the good times with them .O 8 them the same things they give to you. Friendship will break quickly if only one person is giving and p 9 effort(努力) into it.

You will find there is nothing more v 10 than having a true friend by your side to share life with, just as someone says, “There is nothing on this earth more to be prized(珍惜) than true friendship.”
查看答案
单项选择题 案例分析题

患者男，46岁。回吸性血涕3个月。查体：锁骨上可触及肿大淋巴结。穿刺细胞学示"转移性鳞癌"。

该鼻咽癌患者经根治性放疗后原发灶已控制，但颈部尚留有＜1cm淋巴结一个，请决定下一步治疗方案（）

A.密切观察

B.立即手术

C.针对淋巴结继续放疗

D.化疗

E.中药外敷

F.不好判断
查看答案