下列英文表达中属于前T/T的是()。
A、100% TT after 15 days
B、100% TT in advance
C、70% TT after 15 days
D、the balance of TT is against the copy of the B/L (bill of lading)
A、100% TT after 15 days
B、100% TT in advance
C、70% TT after 15 days
D、the balance of TT is against the copy of the B/L (bill of lading)
B.倒T形构图为一面观,外观形似英文字母T的倒字形状造型
C.倒T形是四面观的构图形式
D.倒T形构图外观形似倒写的英文字母T字
The computer itself does not do all the work on its own. The work is done by a(1)of the computer, called hardware, and(2)ofinstructions, called software or computer programs. Inside the machine, the instructions are(3)and carried out to do the work you want to do. A computer without software is nothing more than a mass of metal and plastic. On the other hand, software without a computer is simply wasted(4)because only the computer can use the software and put it to work. When you talk about a computer's being able to do this or that, you are really refemng to the(5)that accepts your commands and the computer that carries them out.
Application development increasingly means Windows development, and the popularity of visual development tools has(1)in tandem with Windows itself These tools create beautiful windowing(2), and their fast development cycles and easy learning curves make them a good(3)for many types of PC development projects. Today's developers are leveraging these tools and the abundance of heap, powerful PCs to shift the balance of power to the desktop.
As the world moves inexorably toward Windows and other(4)user interfaces, developers can choose from an abundance of(5)oriented tools. Popular examples include Microsoft Corp.'s Visual Basic, Powersoft Corp.'s PowerBuilder, Gupta Technology Corp.'s SQL Windows,and so on.
An antivirus program(1)a virus by searching code recognized as that of one of the thousands of viruses known to afflict computer systems. An antivirus program also can be used to create a checksum for(2)files on your disk, save the checksums in a special file, and then use the statistic to(3)whether the files are modified by some new virus. Terminate and stay resident (TSR) programs can check for unusual(4)to access vital disk areas and system files, and check files you copy into memory to be sure they are not(5).
Software quality assurance is now an(1)sub-discipline of software engineering. As Buckly and Oston point out,(2)software quality assurance is likely to lead to an ultimate(3)of software costs. However, the major hurdle in the path of software management in this area is the lack of(4)software standards. The development of accepted and generally applicable standards should be one ofthe principal goals of(5)in software engineering.
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