She didn’t allow the accident to discourage her. On the contrary, she began to work .
A. as twice hard
B. twice as hard
C. twice as harder
D. harder twice
网友回答
A. as twice hard
(答案→)B. twice as hard
C. twice as harder
D. harder twice
解析：考查倍数的用法。倍数应该放在as...as和比较级之前，排除A、D；as...as句型中用形容词、副词的原形，排除C。故选B。