媒介管理者应该具备的基本知识、能力与技巧，不包括（）
A.专业技术
B.人际关系
C.现代管理理念
D.推销员经营
参考答案：D
—I don’t know makes her different from others.
—Confidence, I think.
A．how is it that
B．how it is that
C．what is it that
D．what it is that
金绿宝石在（）处具典型吸收宽带。
A.420nm
B.432nm
C.444nm
D.451nm
