共用题干
Cell Phone Lets Your Secret OutYour cell phone holds secrets about you.Besides the names and________(51)that you'ye pro- grammed into it,traces of your DNA linger on the device,according to a new study.DNA is genetic material that_________(52)in eve
共用题干
Computer Plug-in1.Life on the Internet can be enriched if you don't restrict yourself to just written words and still pictures.Even if you are a newcomer to the Internet world,you've probably heard about multi-media on-line一listening to radio,watchi