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问题 多项选择题

下列是说法正确的是（）

A、公路运输具有灵活性大，机动性强的特点

B、铁路运输具有动量大，速度快，运行时间准确的特点

C、水路运输具有载重量大，成本低的特点

D、航空运输具有快速、机动的特点

答案

参考答案：A, B, C, D

单项选择题

An application architecture specifies the technologies to be used to implement one or more information systems. It serves as an outline for detailed design, construction, and implementation. Given the models and details, include （） , we can distribute data and processes to create a general design of application architecture. The design will normally be constrained by architecture standards, project objectives, and （） . The first physical DFD,to be drawn is the （）. The next step is to distribute data stores to different processors. Data （） are two types of distributed data which most RDBMSs support. There are many distribution options used in data distribution. In the case of（），we should record each table as a data store on the physical DFD and connect each to the appropriate server.

The first physical DFD,to be drawn is the （）.

A.  context DFD

B.  system DFD

C.  network architecture DFD

D.  event-response DFD
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单项选择题 A1/A2型题

女性，56岁，肝硬化伴大量腹水，应首选的利尿剂为（）

A.呋塞米

B.氢氯噻嗪

C.利尿酸钠

D.螺内酯

E.甘露醇
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