Premiere6.5提供了约（）种典型的特技切换效果。
A.75
B.99
C.85
D.60
参考答案：A
设备安装工程施工作业开工前的要求是？
Why were you upset? The headteacher wasn’t blaming anyone. He said things like that could be avoided.
A．mostly
B．nearly
C．certainly
D．merely
