题目

Parents and kids today dress alike, listen to the same music, and are friends. Is this a good thing?Sometimes, when Mr. Ballmer and his 16-year-old daughter, Elizabeth, listen to rock music together and talk about interests both enjoy, such as pop culture, he remembers his more distant relationship with his parents when he was a teenager.“I would never have said to my mom, ‘Hey, the new Weezer album is really great. How do you like it?’” says Ballmer. “There was just a complete gap in taste.”Music was not the only gulf. From clothing and hairstyles to activities and expectations, e野战部队携带的压缩饼干与普通饼干相比，好处在于质量相等的情况下，它的体积     ，密度     ．（选填“较大”或“较小”）