[单项选择]护士为病人进行体位引流，不正确的是
A. 确定引流体位很重要
B. 引流应在进餐前30分钟完成
C. 每天可引流1～3次
D. 每次引流时间可持续15分钟
E. 引流后辅以雾化吸入可增加引流效果

Book Description
With hundreds of ready-to-use model business letters that you can adopt or your own business correspondence!
These clear, easy-to-follow sample letters cover the most important types of business correspondence:
*Proposals and requests for bids or information
*Claims, complaints, and policy statements
*Sales and inquiry letters
... And many more!
They’ll make your business communications quicker, easier, and more efficient by showing you how to create outstanding letters that get your point across and get the results you want.
About the Author
Michael Muckian is a senior editor of Credit Union magazine, as well as a regular contributor to In Business magazine, the Milwaukee Journal, Advertising Age, and numerous other business journals. John Woods is president of CWL Publishing Enterprises, a book development firm, and author of many business books, including Streetwise Do-

Young girls at high risk for depression appear to have a malfunctioning reward system in their brains, a new study suggests. The finding comes from research that (1) a high-risk group of 13 girls, aged 10 to 14, who were not depressed but had mothers who (2) recurrent depression and a low-risk group of 13 girls with no (3) or family history of depression. Both groups were given MRI brain (4) while completing a task that could (5) either reward or punishment.
(6) with girls in the low-risk group, those in the high-risk group had (7) neural responses during both anticipation and receipt of the reward. (8) , the high-risk girls showed no (9) in an area of the brain called the dorsal anterior cingulated cortex (背侧前扣带皮质), believed to play a role in (10) past experiences to assist learning.
The high-risk girls did have greater activation of this brain area (11) receiving pu
A. Clearly
B. Skeptically
C. Nonetheless
D. However