What had previously prevented aid workersfrom combing the wreckage?

A.The
B.
B．The
C.
C．The
D.
D．The
E.


【参考答案】

C
细节判断题。新闻提到：空难后燃起的熊熊大火开始时阻止了救援人员清理失事飞机的工作。故C正确。