赞题库-背景图

单项选择题

Black people were first brought to America from Africa as______.

A．workers in factories
B．cotton pickers
C．migrants
D．slaves

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热门试题

单项选择题The Falkland Islands are called _____ by Argentina..

A．Islas Maldivas
B．Islas Malfore
C．Islas Maiands
D．Istas Maldavis

单项选择题_____are bound morphemes because they cannot be used as separate words.

A．Roots
B．Stems
C．Affixes
D．Compounds