句子写作：The house ____is still standing.
The house which Abraham Lincoln was born is still standing.
暂无解析
句子写作：Thejudgehadahardtimedeciding___________________.
在发生人感染H7N9禽流感确诊病例的县(区)内，应当在病例确诊后开展为期()的强化监测
What are the key features of a research paper?
How many forms can articles be roughly divided into?what are they?
