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姚女士，45岁，胃大部切除术后，因术中失血较多，给予输血，今晨输血过程中突然出现呼吸困难，气促，咳嗽，咳粉红色泡沫状痰，痰液从口鼻涌出，双肺可闻及水泡音和哮鸣音。

病人应即刻取（）。

A.端坐位

B.仰卧中凹位

C.头低脚高位

D.半坐卧位，抬高下肢

E.右侧卧位，头高脚低

答案

参考答案：A

单项选择题

(4) 既具有检错功能又具有纠错功能。

A．水平奇偶校验

B．垂直奇偶校验

C．海明校验

D．循环冗余校验
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填空题



Americans have four primary avenues for making friends: at work, at school, through a hobby or a (1) such as volunteer work and discussion group, or through a family or (2) .
In American culture, a job is more than the work that one performs between the hours of 9 a.m. and (3) . Work becomes a major socializing influence. Many young mothers who (4) their jobs to care for small children remark on the loneliness of their new lifestyles because they have lost their forum for (5) .
A great number of American employers recognize business social (6) and use it to build a family atmosphere on the job so that employees will feel (7) in their work environment. Some employers arrange company get-togethers in their home or at a (8) . American companies have at least one (9) annually, usually at Christmas time. Many corporations have (10) where employees and administrators alike dress (11) to play games such as baseball and volleyball.
Top American administrators often hold social gatherings (12) . Depending upon the size of the employer’s home and the number of (13) . These social gatherings may be picnics, pool parties, or (14) . If the company is large, an employer may hold what Americans call (15) . For an open house, the employer will invite his employees to come to his home (16) between 1 p.m. on a certain day. Those invited usually stay for (17) , chatting with the other guests and their host. People come and go (18) during the designated hours, and the host keeps refreshments, usually (19) or hors d’oeuvres and beverages, available for all who come. For such social gatherings, it is considered (20) the invitation unless you have an excellent reason.
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