问题 单项选择题

皮瓣修复电烧伤创面时做法错误的是()

A.周边深Ⅱ度烧伤创面可游离植皮以减少皮瓣覆盖的面积

B.电烧伤1周以内的创面,大部分都可选用随意型皮瓣覆盖

C.暴露肌腱、关节、神经的创面必须选用随意型皮瓣覆盖

D.深度组织缺血、感染创面,最好选用血运丰富的肌皮瓣覆盖

E.足跟暴露创面,可做血管吻合的游离皮瓣或肌皮瓣覆盖

答案

参考答案:C

解析:暴露肌腱、神经和关节的创面,以及烧伤后3周以上有感染的创面,必须选用血运丰富的带蒂皮瓣/肌皮瓣或做血管吻合。一般认为电烧伤后7~10天内的创面没有感染,而3周以上的创面多数已经发生感染。

单项选择题
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Volunteering abroad is a great way to help others, improve your skills and become a more confident, independent person. If you are interested in volunteering abroad, here are some places to go.

Australia  

If you seek a life on the beach, in a great climate with friendly people, Australia might be your best bet. With thousands of volunteers already signing up to leave for Australia during the holidays, it will be a very popular option.

Brazil

This vast country has some great opportunities on offer and is especially popular this year. A lot of volunteer work is available in Brazil centers on conservation and ecological projects. With the world's largest rainforest in Brazil, of which huge part is in danger, there are lots of different jobs you can do.

Kenya

Kenya is the destination for those seeking an African experience. Generally volunteers in Kenya work in orphanages(孤儿院)or with local children living in slums(贫民窟). There is a great demand for volunteers in Africa because many people live in poverty, so if you truly feel like making a difference to a community, Kenya should be at the top of your list.

Costa Rica

Golden sandy beaches, clear coastlines and beautiful cities are what Costa Rica is all about. Because of its small size, you can see a lot of the country in just a short time. You can really make the most of your time as a volunteer. A lot of work is needed with wildlife and ecological work, so if you want to look after turtles on the beach, Costa Rica could be just the place for you

小题1:If you are interested in protecting the environment, you will probably go to _______.  

A.Australia

B.Kenya

C.Brazil

D.Costa Rica小题2:1t can be inferred from the passage that volunteers in Kenya mainly work with_______.

A.animals

B.plants

C.the elderly

D.children小题3:If you choose to go to Costa Rica, you are supposed to________.

A.work with animals on the beach

B.surf with children in the water

C.take care of trees in the forests

D.look after children who have lost their parents