手术前存在失误而发生手术风险的事件，主要原因是什么？

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问题问答题简答题

答案

参考答案：

1、手术前对手术治疗的准备工作不充分

2、手术前对手术区的备皮不严格

3、手术前对患者未做详细的内科检查

阅读理解

阅读理解。

Hello! My name is Alice. I'm from America. I'm twelve years old. My father is a businessman. My

mother is a teacher. Lily is my sister. She is ten years old. She is a student. I am a student, too. We go

to school together, because we are in the same school.

1. Where is Alice from?

A. England

B. the U. S.

C. Canada

2. What is Alice's father?

A. teacher

B. doctor

C. businessman

3. Is Lily a student?

A. Yes.

B. No.

C. I'm not.

4. Is Alice a teacher?

A. Yes.

B. No.

C. I'm not.

单项选择题

听力损失为41～55dB是()

A．轻度聋

B．中度聋

C．中重度聋

D．重度聋

E．极度聋