问题 单项选择题 A1型题

常寄生在 * * 内易引起产褥感染的是()

A.厌氧性链球菌

B.溶血性链球菌

C.白色葡萄球菌

D.大肠杆菌

E.白色念珠菌

答案

参考答案:A

解析:这是一道考核学生对产褥感染病原体致病性的理解记忆题。常见错误为选E,白色念珠菌,认为白色念珠菌是 * * 常见的条件致病菌而误以为其常易引起产褥感染。正确答案是厌氧性链球菌。要点:厌氧性链球菌是产褥感染最常见的致病菌,以消化链球菌和消化球菌最常见,大约有70%的病例能找到此菌。它平时常寄生在 * * 中,产道无损伤时,不致引起疾病,但在组织受伤后,如产道裂伤、胎盘残留、局部组织坏死等,细菌迅速繁殖即可引起感染。

阅读理解

阅读理解。

     A forest fire burned 55 square kilometers was finally brought under control on Wednesday morning.

The fire started on Sunday in Black Bear State Park and quickly spread to nearby areas.

     On Monday, police evacuated (疏散) the small town of Lawson and ordered the people to leave

their homes. The fire destroyed 20 homes in the area and caused heavy damage to 40 others. Nobody

was hurt. Officials said the damage to homes and cars was between $I million and 2 million. The

government declared the town a disaster (灾难) area.

    The fire spread quickly in the hot, dry weather. Fire fighting was difficult because of strong winds.

Firemen from 55 fire departments in the state joined the National Fire Service to put out the fire. Some

kept fighting for 24 hours. Fire engines and helicopters dropped water onto the fire. In order to control

the fire, firemen cleared a way around the fire. Police closed King road to traffic on Tuesday because

of the heavy smoke. Thousands of tourists had to drive an hour north to Queen road to pass the fire

area.

    Some people did not follow the police's order. Paul Grayson sent his wife and two children to safety,

but he stayed. As the fire came within 50 feet of his house, he started thinking," Am I foolish? Did I stay

here too long, just for a house?"

1. When and where did the forest fire start?

    The fire started ______

2. What did the police order the people to do?

     The police ordered the people to ______.

3. How did the firemen drop water onto the fire?

    They ______ to drop water onto the fire.

4. How long did the tourists have to drive north to Queen road to pass the fire area?

                                                                              

5. What kind of person do you think Paul Grayson was? 

                                                                            

判断题