机械密封与填料密封相比（）的功率消耗较大。A、机械密封 B、填料密封 C、差不多

important, friend, mean, them, stand, itself, child, remember, age, weather, pleasant, feel

 
Have you heard of small talk? It 小题1:________ that the conversation is about some little things, which are not 小题2:________. You can make small talk when 小题3:_________ in line in the supermarket or while waiting for the bus. Though the topics in small talk aren’t important, small talk 小题4:________ is very important. It makes people 小题5:_________relaxed; It breaks the silence; It shows 小题6:________ and good manners; And it makes time pass 小题7:________.
In small talk, it’s important 小题8:________ to smile and keep the conversation relaxed. It’s also good to show a sense of humor. You could talk about the 小题9:_________ , an interesting story on TV, a sports event, a play or a movie, and you could ask parents about their 小题10:_________.