在实际的教学过程中，主要有三种直观方式，即实物直观、模象直观和 （） 。
参考答案：言语直观
If (如果) he isn’t at school. Please call me _______ 453-7868. [ ]
A. in
B. at
C. on
D. for
Which of the following organizational structures is used in large organizations involved in multiple projects
A．Functiona
B．Strong matri
C．Projectize
D．Combination of all of the abov
