下列急性化脓性腹膜炎的常见病因，错误的是 A．溃疡病急性穿孔

搜题请搜索小程序“爱下问搜题”

问题单项选择题

下列急性化脓性腹膜炎的常见病因，错误的是

A．溃疡病急性穿孔
B．急性阑尾炎穿孔
C．肠管损伤破裂
D．直肠下段损伤
E．腹内脏器炎症的扩散

答案

参考答案：D

解析：直肠下段位于腹膜外，故直肠下段的损伤不会引起急性化脓性腹膜炎。故答案应选D。

填空题

根据句意和首字母提示补全下列各句中的单词。

1. He is very o______, because he likes talking and laughing.

2. My father u______ to be a teacher, but now he is a writer.

3. He has c______ a lot. Because he is different from the past.

4. I am not afraid of the d______. I dare to go out.

5. I often send and receive e______ on the Internet.

问答题简答题

现代粮食物流的特点有哪些？