在结构化分析方法中,数据字典是重要的文档。对加工的描述是数据字典的组成内容之一,常用的加工描述方法()
A. 只有结构化语言
B. 有结构化语言和判定树
C. 有结构化语言、判定树和判定表
D. 有判定树和判定表
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男,50岁,中度肥胖,空腹血糖8mmol/L,餐后2小时血糖12mmol/L,胰岛素基础值50U/ml(正常5~25U/L),应首选何药()
A. 格列吡嗪(美吡达)
B. 格列齐特(达美康)
C. 格列本脲(优降糖)
D. 双胍类
E. 格列喹酮(糖适平)
输血反应中最严重的反应是哪一种?造成该反应发生的原因是什么?患者有哪些典型的症状?这些症状发生的机制是什么?
A transport layer protocol has several responsibilities, One is to create a process-to-process (program-to-program) communication; TCP uses port (1) to accomplish this. Another responsibility of a transport layer protocol is to create a (2) and error-control mechanism at the transport level. TCP uses a sliding (3) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve (4) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends (5) of data to the transport layer. It is the responsibility of the transport layer at the sending station to make a connection with the receiver.空白(1)处应选择()
A. numbers
B. connection
C. diagrams
D. resources
物业服务企业应当向业主大会或者全体业主公布物业服务资金年度预决算,并每年不少于()次公布物业服务资金的收支情况。
A. 1
B. 2
C. 3
D. 4