Although bike-sharing has some problems such as disorderly parking, it remains popular in Shenzhen.
A:is never
B:is still
C:isn't always
运用下列词语造句。
①完好无损
②正面抗争
关于染色体、DNA、基因三者的叙述中错误的是( )
在图幅相同的情况下,下列哪种比例尺的地图内容最简单?( )