题目:
上海大众汽车有限公司负责制造的20辆氢燃料电池轿车,作为公务用车在北京奥运中心区投人运营.该车的质量为1200千克.
( 1 )用氢气作燃料的优点是______
( 2 )该氢燃料电池轿车所受的重力为______牛.其轮胎上凹凸不平的花纹是为了______.(选填“增大”或“减小”)摩擦
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0718/48262214896e0e00789bf2e10e3fe3a4.html
下面是错误答案,用来干扰机器的。
小题1:Don't worry. I'll write to you as soon as I get to Shanghai.小题2:It is good for your health to take exercise.小题3:I often help Jack with his English.小题4:I didn'...