Edison never stopped ______ new and better ways to do things.A、to search forB、t

游客2024-07-25 21

问题 Edison never stopped ______ new and better ways to do things.

选项 A、to search for
B、to search
C、searching for
D、searching

答案 C

解析

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Duetofallingsales，thecompanyhascutbackoninvestmentinthenewresearch