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
【正确答案】
B
【答案解析】
介词词组辨析。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”。语境是：在前几次会议上，董事会已经______讨论了这个话题，并将全方位地进行处理。结合选项，at length符合语境。故答案为B。
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