题目

If you look at the top of your phone, you’ll usually see a little symbol that says 3G or 4G.【1】 But these symbols will become things of the past after 5G networks fully arrive.On March 30, 2019, Shanghai vice mayor Wu Qing made the first 5G video call on a Huawei Mate X Smartphone.【2】About 100 times faster than 4G networks, 5G will let people download(下载) and upload data (数据) faster than ever before. But 5G won’t just bring faster mobile internet.【3】For example, 5G will help to make self-driving cars safer. Today’s self-driving test cars have one problem—lag(延迟)There will be _______ space for living things on earth.A．little and littleB．less and lessC．few and fewD．fewer and fewer