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问题 单项选择题

患者，女性，73岁，慢性心力衰竭病史12年。主因受凉后呼吸困难5天，加重伴喘息半日入院。入院后予开放静脉，输入扩血管、强心、利尿药物，护士应控制静脉输液滴速为

A．20～30滴／分

B．30～40滴／分

C．40～50滴／分

D．50～60滴／分

E．60～70滴／分

答案

参考答案：A

解析：本题考查了心源性呼吸困难患者输液的护理。该患者有慢性心力衰竭病史，本次人院主因心源性呼吸困难入院。因此在静脉输液中应注意滴速的控制，输液速度应严格控制在20～30滴／分，防止急性肺水肿的发生。

阅读理解

阅读下面的短文，并完成短文后的任务。

      You will find traffic noise disappearing as soon as you arrive in Venice. So as you walk down the narrow

streets, you only have to avoid (避免) crowds of people. (3) About 19 million travellers visit Venice for the

enjoyable environment, art and food each year.

      Seeing Venice on foot is the best. You can walk through the city in about an hour. Look around St.Mark's

Basilica and the Doge's Palace. (4) But you should know walking along the streets isn't as easy as traveling on

the city's canals. The canals are Venice's "streets". And you can enjoy the Grand Canal, the Rialto Bridge and

many wooden buildings.

      Venice is fantastic. You shouldn't miss it in your life. No matter how long you're in Venice, it will leave a

pleasant feeling on you.

1. Why will you find noise disappearing as soon as you arrive in Venice?

                                                                                                    

2. What can you enjoy in Venice when traveling on the city's canals?

                                                                                                    

将短文中划线的两个句子译成汉语 

3.                                                                                                  

4.                                                                                                 

5. 请给短文拟一个适当的标题

                                                                                                     

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单项选择题

药物避孕的机理不包括

A．抑制排卵

B．抑制精子获能

C．增加宫颈黏液黏稠度

D．使内膜增生不良

E．阻止精子与卵子结合
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