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【单选题】
根据 GB/T10058-2009 《电梯技术条件》,乘客电梯起动加速度和制动减速度最大值不应大于 ( )m/s 2A.
1.2
B.
1.4
C.
1.5
D.
2.0
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【单选题】听力原文： Not only farmers but also scientists have studied weather forecasting. People for many centuries and in all countries have studied the weather and tried to make weather forecast. Sometimes dista...
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