Naval officers on China’s first domestically built aircraft carrier, the Shandong, were popular photo subjects for Hong Kong residents enjoying a rare opportunity to sing and dance with them on the second and final day of the warship’s public opening on Sunday. Visitors queued up to capture on camera the sheer scale of the 70,000-tonne carrier, with its distinctive “ski jump” ramp, fighter jets, likely to be J-15s, and helicopters, and to seize the chance to meet and interact with officers. “The...