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Biden leads all Democratic candidates in most nationwide polls, but the results mean little because the primaries are conducted by individual states and the first debate will not be held until June.

Being located in Hamburg, GIGA has been known for its studies of Asia, Africa, Latin America and the Middle East, as well as cross-regional and global topics.

Biden, 77, met Monday with three union workers who also served in the US military, at a home in Lancaster, Pennsylvania.

Between 2012 and 2016, Chinese courts handled 541,342 drug-related cases, of which 534,884 were concluded, according to the top court. In the same period, 543,355 people were punished, of whom over 119,000 were given five years or more in prison.

Besides education, students need incubators to make their dreams of entrepreneurship come true. Over the past two years, 19 demonstration bases for entrepreneurship and innovation have been set up in universities.