单项选择题

The United States Department of Labor (enforces) laws that (promote) the welfare of wage earners, (improving) occupational conditions and (advance) employment opportunities.

A. enforces
B. promote
C. improving
D. advance
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单项选择题
Part Ⅳ ClozeDirections: In this part, there is a passage with 15 blanks. For each blank, there are 4 choices marked A, B, C and D. Choose the best answer for each blank and mark the corresponding letter with a single bar across the square brackets on your machine-scoring ANSWER SHEET.
A．consisted
B．contained
C．composed
D．comprised
单项选择题
In the eyes of the author, conventional opinion on conflict is ______ .
A．wrong
B．oversimplified
C．misleading
D．unclear
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