22.
(A) Later advances in battery technology led to smaller radios.
(B) However, loudspeakers in public places can be an annoyance, which is still the case today.
(C) similar to the headphones we are familiar with today.
(D) where customers rented special listening devices similar to doctors' stethoscopes.
(E) The next breakthrough was made by an American inventor named Nathaniel Baldwin in 1910.

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統計： A(1), B(0), C(1), D(5), E(0) #3442720

詳解 (共 2 筆)

#6485467
【正解】(D) where custo...
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22. "The Electrophone service was a subscription-based model ______."

  • 描述 Electrophone 的服務模式。

  • D → 「where customers rented special listening devices」精確描述訂閱模式下的設備租借。

✅ 答案：(D)

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