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"China and the US, the two major countries, bear special duties in this regard," he said.

"China is the largest market for entry-level skiers. Despite the overall skiing market being on the rise, in the past five years, the number of hard-core skiers has gone down slightly. China's ski market has begun to differentiate," Wu said.

"Buying old houses is costly, and reconstructing them is not only costly but also time-and energy-consuming. If you are not really fond of them, you will destroy the houses," said Yu Biao, director of the cultural heritage protection office in Yixian.

"China has tested a wheeled bullet train at speeds up to 420 km per hour in operation. ... The safety index is totally fine - including the derailment coefficient, shock absorption, vertical acceleration and horizontal acceleration - leaving the vibration noise (unsolved)," He Huawu said in a China Central Television program on Sunday night.

"China is sure to see abundant labor force in the future, and we are committed to boosting the quality of labor and building China into a country with strong human capital resources."