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47. According to the passage, which of the following events have caused most of the cable failures?
(A)Earthquakes.
(B)Storms.
(C)Sea waves.
(D)Human activities.
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統計： A(248), B(134), C(140), D(1822), E(0) #2397096
統計： A(248), B(134), C(140), D(1822), E(0) #2397096
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由此可知：
There are about 200 such failures each year and the vast majority are caused by humans. “Two-thirds of cable failures are caused by accidental human activities, fishing nets and trawling and also ships’ anchors,” said an expert.
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47. According to the passage, which of the following events have caused most of the cable failures故障?
(A) Earthquakes.
(B) Storms.
(C) Sea waves.
(D) Human activities.
47. 根據這段話，以下哪項事件導致了大部分電纜故障？
（A） 地震。
（B） 暴風雨。
（C） 海浪。
（D） 人類活動。
（A） 地震。
（B） 暴風雨。
（C） 海浪。
（D） 人類活動。
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