问题

The number of the workers in this factory300, that is to say, it20%.
A:has increased by; has increased to
B:have increased to; have increased by
C:has increased to; has increased by
D:have increased by; have increased to
B:have increased to; have increased by
C:has increased to; has increased by
D:have increased by; have increased to
正确答案是:
同类题型
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