Why did the highway in northern California collapse？A．There were fatal mistakes in its des
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Why did the highway in northern California collapse？
A．There were fatal mistakes in its design.
B．The builder didn’t observe the building codes of the time.
C．The traffic load went beyond its capacity.
D．It was built according to less strict earthquake-resistance standards.
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正确答案：D
解析：细节题。录音原文中提到：The highway was not built according to today’s strict standards to resist earthquakes．