按照“议程设置”理论的观点，人们对于当前社会上的大事及其重要性的认识通常来自（）。
参考答案：大众传播
Choose the right answers to the given questions. 为下列问句选择正确的答案。
( ) 1. How's the weather today?
( ) 2. What is the fifth month of the year?
( ) 3. What's the date?
( ) 4. When is lunch?
( ) 5. What day is it?
A. May.
B. It's Saturday.
C. It's 12:30.
D. It's September 10.
E. It's warm and sunny.
电路是利用单结晶体管（）的工作特性设计的。
A、截止区
B、负阻区
C、饱和区
D、任意区域
