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Any acts that advocate Hong Kong's independence and threaten China's sovereignty, security or development interests will not be tolerated, Hong Kong Chief Executive Carrie Lam Cheng Yuet-ngor said on Wednesday morning in her annual policy address, which was disrupted by protest within the Legislative Council.

Anti-CD47 therapies are among the most fiercely competitive branches of cancer drug development.

Another portion of the filing explains how the system could capture an image of someone’s hand as it crosses?the plane of?a shelf, analyzing?the skin color to help identify?the person’s hand, and determine whether the person was removing or placing an item on the shelf.

Apart from telecommuting, distant education is another focus for IT companies. iTutorGroup, the smart education arm of Ping An Insurance (Group) Co Ltd, opened its online study platform for free. The platform enables students across China to learn effectively at home.

Anya Kamenetz is the author of The Art of Screen Time: How Your Family Can Balance Digital Media and Real Life. In an excerpt from her book published in Time magazine in January, she wrote: "Put down your phone around your own children, if you can and when you feel you ought to. But don't presume to tell me or other mothers what to do with their own lives, or lifelines."