题目内容

系统软件中最核心的部分是______。

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传输层的主要任务是向用户提供可靠的______服务，透明地传送报文。

● Look at the notes below.● Some information is missing.● You will hear a conversation about the customer’s details,● For each question 16-22, fill in the missing information in the numbered space using one or two words.● After you have listened once, replay the recording, Customer Details Name: Mr. (16) ............ Company: The Hill (17) ............ company Address: (18) ............ Green street philadephia, Pennsylvania Phone No.: (19) ............ Fax No.: (20) ............ Order details: (21) ............ Quantity/Amount: (22) ............

The software architecture of a program or computing system is the structure or structures of the system, which comprise software, the externally properties of those components, and the relationships between them. The architecture is not the operational software. Rather, it is a that enables a so, ware engineer to: analyze the of the design in meeting its stated requirements, consider architectural alternatives at a stage when making design changes is still relatively easy, and reduce the __ associated with the construction of the software.

A. framework
B. deliverables
C. representation
D. semantic models

下列程序功能为：弹出一个对话框询问用户是否输出，如果是，则输出；否则结束。请填写空白处。 Sub PrintOut() Dim a As Integer a=MsgBox("输出结果",vbInformation+vbYesNo,"提示:") If a=______Then Print "Myresult" End If End Sub