Расположите пропущенные предложения в таком порядке чтобы получился связный текст There are many dif...: ответ на тест 782203 - Английский язык
Расположите пропущенные предложения в таком порядке, чтобы получился связный текст
There are many different types of lasers. 1_______. The first type of laser was called a ruby laser.2_______. Other lasing mediums can be selected based on the desired emission wavelength, power needed and pulse duration. 3_______. The reason that CO2 laser is so dangerous is because it emits laser light in the infrared and microwave region of the spectrum. 4_______.
There are many different types of lasers. 1_______. The first type of laser was called a ruby laser.2_______. Other lasing mediums can be selected based on the desired emission wavelength, power needed and pulse duration. 3_______. The reason that CO2 laser is so dangerous is because it emits laser light in the infrared and microwave region of the spectrum. 4_______.
Варианты ответов
- A ruby laser is a solid-state laser which emits at a wavelength of 694 nm.
- Some lasers are very powerful, such as the CO2 laser, which can cut through steel.
- The laser medium can be a solid, gas, liquid or semiconductor.
- Infrared radiation is heat, and this laser basically melts through whatever it is focused upon.
Правильный ответ
Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 01:29
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 01:29
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 01:29