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6 февраля, 13:03

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1. After the experimental studies the new method was tested at the plant.

2. The new discovery is being much spoken about.

3. The unit "bel" is named after Alexander Graham Bell, The American inventor of the telephone.

4. The first permanent telephone line was built in Germany in 1877.

5. This new laboratory equipment will be installed next month.

6. By 1915 a coast-to-coast telephone line had been opened in the United States.

7. These scientific data can be relied on.

8. Today plastics are being widely used.

9. New technologies and equipment have been designed for most branches of engineering.

10. Wireless communications systems have been developed for recent years.