A-A+
Dr. Smith failed many times but he finally____
问题详情
Dr. Smith failed many times but he finally____to find a successful way to solve the problem.
A．broke off
B．broke down
C．broke out
D．broke through请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：D
解析：各项的意思是：break off“停止讲话”；break down“(因机械、电力等故障)停止运转，失灵；失败，崩溃，瓦解；(身体状况)变得恶劣”；break out“突然发生”；break through“有重要创建，突破”。根据题意，D为正确答案。
