The physical setting of a speech includes the following EXCEPT______（）
A. the size of the room
B. the knowledge of the listeners
C. the temperature of the place
D. the light of the setting
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Which of the following factor is NOT among the factors of demographic analysis（）
A. Gender
B. Location
C. Religion
D. Cultural background
People don’t usually expend the time and effort to attend a speech unless____（）
A. the speech is delivered by a celebrity
B. attending the speech is a course requirement
C. they are invited to the speech
D. they have some interest in the topic
Linux最早由（）开发
A. Richard Petersen
B. Linus Torvalds
C. Rob Pick
D. Linux Sarwar
以下四个选项中，哪一项中的所有软件都属于虚拟现实引擎/游戏引擎（）
A. 3ds Max，Maya，SketchUp
B. Photoshop, Illustrator，CoreDraw
C. OSG；Unity；Vega；Unreal
D. Visual Studio，AutoCAD，ArcGis
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