单选题
______ will be given to the doctoral candidates who are registered in their last year of study and who are attending a major professional meeting.
【正确答案】
D
【答案解析】句意：那些即将毕业和参加了职业会议的博士生将会被优先考虑。priority优先考虑，优先权。promotion提升，推销。preference偏爱，优惠。precaution预防措施。