女性，70岁。高血压20余年，冠心病史10余年，乙肝病史30年。半个月前着凉后出现胸闷，气短，偶有咳嗽，白痰，夜间明显，双下肢逐渐水肿，尿少，1周来偶有夜间憋醒，气短加重来诊。查体：BP170／80mmHg，HR96次／分，唇微绀，颈静脉怒张，双肺底可闻及小水泡音，心律齐，未及杂音，腹部膨隆，肝肋下2cm，脾未触及，移动浊音阳性。双下肢重度水肿。
以下检查不必要的是（）
American women experience a great variety of lifestyles. A "typical" American woman may be single. She may also be divorced or married. She may be a homemaker, a doctor, or a factory worker. It is very difficult to generalize about American women. However, one thing that many American women have in common is their attitude about themselves and their role in American life.
Historically, American Women have always been very independent. The first colonists to come to New England were of ten young couples who had left behind their extend ed family (i. e. their parents, sisters, cousins, etc. ). The women were alone in a new, undeveloped country with their husbands. This had two important effects. First of all, this as yet uncivilized environment demanded that every person share in developing it and in survival Women worked alongside their husbands and children to establish themselves in this new land Second, because they were in a new land without the established i
A. was strengthened
B. was as important as early
C. was declined
D. was more reinforced than early days
Effective communication is essential for all organisations. It links the activities of the various parts of the organisation and ensures that everyone is working towards a Common goal. It is also extremely important for motivating employees. Staff need to know how they are getting on, what they are doing right and in which areas they could improve. Working alone can be extremely difficult and it is much easier if someone takes an interest and provides support. Employees need to understand why their job is important and how it contributes to the overall success of the firm. Personal communication should also include target setting. People usually respond well to goals, provided these are agreed between the manager and subordinate and not imposed.
However, firms often have communications problems that can undermine their performance. In many cases, these problems occur because messages are passed on in an inappropriate way. There are of course, several ways of conveying inf
A. Aim to limit staff use of certain communication tools.
B. Evaluate them in terms of the expenditure involved.
C. Select them on the basis of the facilities they offer.
D. Encourage more staff to attend training courses in their use.
在基于TCP/IP的互联网服务中，传输层的UDP协议提供进程之间（）报文传输服务，TCP协议提供进程之间（）报文传送服务；TCP使用三次握手协议建立连接，传输报文，使用修改的三次握手协议来关闭连接。关闭连接时，设甲乙两方发送报文的序号分别为X和Y，甲方发送（）的报文给乙方，乙方先发送一个（）确认报文给甲方，并通知应用程序后再发送一个（）的报文给甲方，最后甲方回送一个ACKY+1确认报文。
并通知应用程序后再发送一个（）的报文给甲方，最后甲方回送一个ACKY+1确认报文。
女，54岁。腹痛、腹胀、乏力3个月。腹部隐痛阵发性发作。查体：贫血貌，浅表淋巴结无肿大，巩膜无黄染，腹软，未见肠型，右下腹可触及一活动性包块。实验室检查：Hb90g/L，WBC9.5×109/L，肝功能正常，CEA20μg/L。粪隐血试验阳性。最可能的诊断是（）
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