SINGAPORE — Chinese markets rose on Wednesday, tracking gains in other Asia-Pacific markets. U.S. markets also rallied overnight as comments from the Fed chief appeared to reassure investors. Hong Kong’s Hang Seng index led gains in the region, as it jumped 2%. The Hang Seng tech index soared 3.7%, as Tencent was up 3.13%, and Alibaba climbed 4.7%, and Meituan jumped 7.69%. JD soared over 9%. Mainland Chinese markets also rose, as the Shanghai composite was up 0.37%, and the Shenzhen component rose 0.61%.