可插入多行注释的 JavaScript 语法是哪个选项（）
A. /This comment has more than one line/
B. //This comment has more than one line//
C
D. ＜!-This comment has more than one line-＞
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
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
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