超星 - Work and pleasure - 查题吧

单选题

What does the word "class" in "...human being may be divided into three classes"(Line 6, para. 1) mean?

A. types
B. groups

单选题

What does the word "industrious" mean in "It may also be said that rational, industrious, useful human beings are divided into two classes"? (Line 1, para.2)

A. companies
B. hard-working

单选题

What structure is applied in Para.2?

A. general-specifical--general
B. general-specific
C. specifical--general

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