单项选择题
A.flocked B.swarmed C.packed D.crowded
The Chinese nation has （） significantly to the progress...
单项选择题The Chinese nation has （） significantly to the progress of human civilization.
A.related B.contributed C.owed D.attached
German, spoken by just over 100 million people, is one ...
German, spoken by just over 100 million people, is one of the world’s ten-largest languages （）population.
A.inplaceof B.bymeansof C.intermsof D.bywayof
