问题描述：
223.Schools across China are expected to hire 50,000 college graduates
this year as short-term teachers,almost three times the number hired last year,_______ reduce unemployment pressures.（江苏）
A.help B.to have helped C.to help D.having helped
请翻译、分析句子成分、选择依据.
this year as short-term teachers,almost three times the number hired last year,_______ reduce unemployment pressures.（江苏）
A.help B.to have helped C.to help D.having helped
请翻译、分析句子成分、选择依据.
问题解答：
我来补答展开全文阅读