麦克鲁汉把媒介分成热媒介和冷媒介两大类,下面四种传播媒介中属冷媒介的().
A.照片
B.电影
C.印刷品
D.电视
参考答案:D
Man: Would you like to see a movie with me tonight ( ) Woman: It looks like raining. The above sentences are linked by ______.
A.grammar
B.lexical
C.phonetics
D.meaning
测量电解液的密度通常是为了()。
A、判断蓄电池的电压
B、确定蓄电池的额定容量
C、测量启动电流
D、判断蓄电池的放电状态