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The power of the electric vehicle has deteriorated and the speed cannot be increased! What causes this?

The power of the electric vehicle has deteriorated and the speed cannot be increased! What causes this?

Recently, many friends have sent private messages in the background, saying that their electric vehicle power technology is getting worse and worse. So what are...

PDF files have layers, you do not use?

PDF files have layers, you do not use?

Today, the delivery of electronic documents, especially cross-company document exchange, the use of PDF format is increasing.

Hong Kong Coronavirus disease. Interview│Government expert Xu Shuchang analyzes the epidemic day and night

Hong Kong Coronavirus disease. Interview│Government expert Xu Shuchang analyzes the epidemic day and night

After months of fighting the epidemic, experts patiently explained that it was a good medicine to appease the panic of the masses. Xu Shuchang, one of the four ...