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Archaeology is another focus of the guideline, which provided a foundation for better display of the cultural significance of the grottoes. But there is not yet enough expertise in niche studies－Liu estimated that only 20-odd experts nationwide are fully devoted to archaeological studies of grotto temples.

Apple's 5G iPhones will join in the competition in the second half of the year with an expected production output of about 70 million this year, ranking second.

Around 100 professionals and government officials in the field participated in the forum.

Artaza applauded Beijing's cooperation with the World Health Organization in fighting the pandemic, and praised the Chinese government's new five-year plan for attaching great importance to the issues of education, poverty, pensions, health, transportation, energy and technology.

Apple has Siri, Microsoft has Cortana, and Amazon has … Echo.