When did Motorola introduce the first cell phones for commercial use? A. In the same years when he first made a cell- phone call. B. In 1981. C. In 1983. D. In the same year when AT&

24 24/09/2024

When did Motorola introduce the first cell phones for commercial use?

A. In the same years when he first made a cell- phone call.

B. In 1981.

C. In 1983.

D. In the same year when AT& T constructed a cell phone system.

Trả lời

Đáp án C

Motorola đã giới thiệu điện thoại di động đầu tiên cho mục đích thương mại khi nào?

A. Trong cùng một năm khi ông lần đầu tiên thực hiện một cuộc gọi điện thoại di động.

B. Năm 1981.

C. Năm 1983.

D. Trong cùng năm đó, AT & T đã xây dựng một hệ thống điện thoại di động.

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Xem tất cả

When did Motorola introduce the first cell phones for commercial use? A. In the same years when he first made a cell- phone call. B. In 1981. C. In 1983. D. In the same year when AT&

Trả lời

Câu hỏi cùng chủ đề

______ is over your head is just an exaggeration because you have well prepared for it over the years. A. This entrance exam B. What this entrance exam C. That this entrance exam D. It i

He built up a successful business but it was all done ______ of his health. A. at the price B. by the expense C. at all cost D. at the expense

If I weren’t afraid of travelling by air, I ______ to go to American by ship, which took me much longer time. A. I hadn’t had B. I wouldn’t have had C. I shouldn’t have had D. I wouldn’t h

There are ______ that not only governments but also individuals should join hand to tackle. A. too numerous environmental problems B. such a lot of environmental problems C. so fewer envir

______ irritating they are, you shouldn’t lose temper with small children. A. No matter how much B. As much as C. However D. Although

You should accept the Nokia mobile phone as a 16–birthday present from your parents delightedly. Don’t ______. A. look gift horse in the mouth B. buy it through the nose C. pull my leg D

Your sister has lost an awful lot of weight. She must have been on a diet, ______? A. mustn’t she B. needn’t she C. haven’t she D. hasn’t she

Just as you arrived, I ______ ready to go out. A. have got B. was getting C. would get D. have been getting

The press thought the sale manager would be depressed by his dismissal but he just ______. A. turned it down B. called it off C. spoke it out D. laughed it off

British Leyland is aiming to push ______ its share of UK car sale to 25% over the next two years. A. on B. up C. through D. out

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