Выберите правильный вариант из предложенных. 1. Correct measurements are beneficial to [A — manufacturing /B — have manufactured /C – manufactured], but other methods are available and sometimes are more appropriate.

2. The high-speed devices [A — to use /B- to be used /C – to be uses] as secondary storage are both input and output devices.

3. [A — such as /B — re¬gardless of / C – as well as] the nature of the devices, interfaces are required to convert the input data to the internal codes used by the computer and to convert internal codes to a format usable by the output devices.