A-A+
The board of directors have already discussed
问题详情
The board of directors have already discussed the subject______ in the previous meetings and they will handle it in all its aspects.
A．in place
B．at length
C．on end
D．off and on请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：四个选项的意思分别是in place“准备妥当”；at length“详细地”；on end“连续地，不断地”；off and on“时断时续地”。句意是：在前几次会议上，董事会已经详细地讨论了这个话题，并将全方位地进行处理。所以正确答案是B选项，如He talked at length about his work(他详细地谈了他的工作)。
