单选题 She didn't ring the communication cord immediately because
【正确答案】 B
【答案解析】
此题为细节理解题。据第7段第2句可知。there was no point of doing so相当于it was no use doing so。
[难点解析]
<1>vehemence:强烈,猛烈
<2>down-line:下行线。上句中的uptrain指上行的列车。
<3>gain:加速
<4>blinds:窗帘
<5>remorselessly:残忍地,无情地
<6>sockets:眼窝
<7>communication cord:用来传递信息的通讯电绳