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题目内容
（河北农业大学大学英语Ⅳ）
The president said that it.s the worst earthquake ever to hit the country, and that he ________ the world for help, asking in particular for heavy-lift helicopters able to carry relief supplies into the isolated mountain areas.
A、has appealled for
B、have appealed to
C、had appealed to
D、appealled for
A、has appealled for
B、have appealed to
C、had appealed to
D、appealled for
参考答案