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"Cheng's book contains analyses of key historical facts and criticisms on some points of view, both founded on a substantial body of materials, which makes it very convincing," said Yang Daqing, associate professor of history and international affairs at The George Washington University.

"China has been increasing the number of new subway projects and upgrading the old lines, which greatly boosts our domestic sales," said Chen Fei, manager at Kunshan Alex Railway Fastening, that makes track fasteners for subway projects in Suzhou, Shanghai, and Shenzhen.

"China is moving to two credible 'ecosystems' that are both trying to provide as wide a range of services as possible to customers," said Richard McKenzie, partner at global consultancy Oliver Wyman.

"China now strictly bans any illegal trafficking and trading of human organs," he added.

"By threatening to impose a 10 percent tariff on an additional 0 billion of imports from China, the US President Trump has upped the ante on the trade conflict between the two," Oxford Economics said in a research briefing.