单项选择题涂料一般分为底漆和面漆，先用( )打底，再用( )罩面。 A、面漆 底漆 B、底漆 面漆 C、底漆 底漆 D、面漆 面漆
多项选择题As social networks are always local, not _________, people in different communities have different ways of using linguistic means to _________ ends. A、universal B、global C、communicative D、talkative
