They made the remarks after Xi, speaking in Brasilia on Thursday, stressed that the most pressing task for Hong Kong at present is to bring to an end the violence and chaos that has plagued Hong Kong since June, and to restore order to the special administrative region.
They may create the potential for "substantial adverse impacts to ground- and space-based astronomy," including "significant disruption of optical and near-infrared observations by direct detection of satellites in reflected and emitted light; contamination of radio astronomical observations by electromagnetic radiation in satellite communication bands; and collision with space-based observatories," according to an AAS statement.
They also shared a vision to build a China-Vietnam capital market ecosystem in which exchanges, intermediaries, companies and investors on both markets could better leverage the resources to serve capital formation for SMEs.
They said the lingering social unrest in Hong Kong shows that many young people have a poor understanding of the spirit of the rule of law and national identity. Such shortcomings reflect the inadequacies of the city's education system, causing misunderstanding of "one country, two systems" and creating negative views of the motherland among young people.
They believe it could be achieved by further integrating into the nation's development.
They are operating on about 300 air routes, and have transported more than 11 million passengers around the world.
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They include 5.4 million face masks, kits for 1.08 million detection tests, 40,000 sets of protective clothing and 60,000 sets of protective face shields, according to the Jack Ma Foundation.
Third, proportion of pre-tax deduction for innovation-based tech firms will be further expanded from the present 50 present of R&D cost to 75 percent from 2017 to 2019.
They spoke at a news conference in Urbana, Illinois, two weeks after learning what the man convicted in the murder of the visiting postgraduate student at the University of Illinois did with her remains two years ago.
They will continue to search for the missing tourist at whatever cost and do their utmost to inter the victims and comfort the families, the statement said.