单项选择题The word centrifugal in the second paragraph means________.
单项选择题The writer’’s father would probably agree with the statement that
单项选择题Ricci is compared to Columbus in the passage mainly because
单项选择题There were worries about the political and economic outlook of the European Union,________.
单项选择题Little did the English people owe him for his services (Paragraph One) means that the English________.