A.To combat competition and raise productivity.
B.To provide them with more job opportunities.
C.To help them maintain their living standard.
D.To prevent them from holding a second job.

A.To
B.
B.To
C.To
D.To
E.


【参考答案】

A
A【解题思路】1．三项含有与“他们”有关的词(them，their)。2．四项均为动词不定式短语。结论：本题......

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