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Anxieties over new energy vehicles' mileage are being alleviated - both by new models that can run farther and the growing charging network.

Another trap is about to be sprung on Hong Kong and mainland students scrambling to get back home from the United Kingdom, as the epicenter of the coronavirus outbreak has shifted from China to Europe, where infections have continued to spike since early March.

Another system gives voice prompts about traffic light status, Wan said. "If it senses someone running a red light, it will spray water vapor and warn pedestrians by voice and laser."

Apparently, it's the fault of the publisher and school in this incident, he added.

Another example: market research and customer surveys can become proxies for customers – something that’s especially dangerous when you’re inventing and designing products. “Fifty-five percent of beta testers report being satisfied with this feature. That is up from 47% in the first survey.” That’s hard to interpret and could unintentionally mislead.