回复 :"A sound wave, which is usually generated in the event of an artificial earthquake, was not detected

回复 :Cho said the number of the poverty-stricken students is declining, and they can now get more financial support from the government, rather than relying on occasional social donations

回复 :Each year, analysts at Clarivate Analytics mine millions of citations in the Web of Science, an online subscription-based scientific citation indexing service, to identify top-tier researchers in physiology or medicine, physics, chemistry and economics