近日，中国科学院院士、中科院大连化学物理研究所研究员张涛和大连化物所催化与新材料研究室研究员王爱琴团队发展了一 ...

In 1839, the initials "O.K." are first published in The Boston Morning Post. Meant as an abbreviation for "oll correct," a popular slang misspelling of "all correct" at the time, OK steadily made its ...