What are the key features of a research paper?
A :It is based on extensive research of proven facts and authoritative testimony.
B:The author ’s voice tends to be objective and neutral.
C:The style tends to be formal.
暂无解析
句子写作：The piano player began to sing loudly.
How many parts is an article usually composed of? What are they?
句子写作：You always remain a victim
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
Whatarethekeyfeaturesofaresearchpaper?