Many come into being when someone is looking for a faster, easier, or better way of doing something. They are …

Question

Many     come into being when someone is looking for a faster, easier, or better way of doing something. They are results of years of planning and hard work.

Accepted Answer

正確答案為 D。關鍵字「faster, easier, better way of doing something」指向「發明」，選 inventions。

Many come into being when someone is looking for a faster, easier, or better way of doing something. They are results of years of planning and hard work.

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