问题 单项选择题

关于急性胃炎,下列错误的是()

A.病因常较明确

B.服用小剂量阿司匹林能够有效地预防急性胃,炎的发生

C.有灶性出血及浅表溃疡形成

D.镜下可见固有膜充血水肿

E.可见中性粒细胞浸润

答案

参考答案:B

解析:急性胃炎常有明确的病因,如过量服用阿司匹林、过度饮酒、重度吸烟、服强酸或强碱;应激性豆应如创伤、外科手术等;缺血和休克等。镜下表现为固有膜充血水肿,中性粒细胞浸润及灶性出血,黏膜表面可见浅表溃疡形成。

单项选择题

About a week ago, when I was playing basketball at our local park, I noticed a small group of boys picking on a smaller, skinnier boy. They were (21) him names and even pushed him to the ground and kicked dirt in his face. (22) I saw that, I walked over to the group.
I stepped (23) them and the smaller boy, and asked them politely what this boy had done worthy of (24) they were doing to him. One of the boys replied, "He’s weird. " At that, I asked one of the boys if he thought his friend was weird, and the (25) was "No." So, I asked another boy what the word "weird" (26) , and he said, "Different." That was my cue (暗示). I told them that everyone is (27) , and that they all looked just as different to the other boy as he did to them. They all stood (28) for a moment, and then the most amazing thing happened. One of the boys helped the small boy off the ground and then said sorry to him. He (29) to let him play with them.
I thanked the boy for being so (30) As I looked around, I realized that there were dozens of other people at the park (31) no one else had stopped to help this boy. I felt happy that the boy was p enough to stand up against his friends to (32) someone in need, but I felt sad that (33) else had even taken a second look.
I hope that my action helped them (34) that they could have made a difference with a little (35) , and maybe next time they will be the ones who choose to help.

Ⅱ. 完形填空

/Close
通过下面短文,掌握其大意,然后再各题所给的四个选项(A、B、C和D)中选出一个最佳选项。

A.someone

B.anyone

C.no one

D.everyone

问答题 简答题