题目

The Beijing express(特快)had________ on the station when we hurriedly got to the platform. A．pulled on                    B．pulled out C．pulled round                 D．pulled off 答案：B　pull on猛吸，狠吸；pull out(火车)出站；pull round恢复健康；pull off驶向路边。句意：当我们匆忙赶到月台时，这次北京特快已经开出车站。

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