治理科研不端行为的最核心要素是指（）
A.专利发明
B.理论知识
C.科学技术
D.科技工作者
参考答案：D
When the man with a scar came into the café I noticed a ______ look come over the waitress face although she did not say anything.
A．surprise
B．surprising
C．surprised
D．surprisingly
金属事故分析会议应由班组人员参加，金属技术监督专责可以不用参加（）
