A:who was charged by speeding
B:who accused him of speeding
C:which was warned of speeding
D:whom reminded him to speed
男女同学正常交往,就可能建立纯真的异性友谊。下列属于男女同学正常交往的是( )
下面是四幅等高线地形示意图,最能体现“幽”这种形象美的是( )
如果不等式ax>1的解集是x<1a,则( )
某同学偏食,夜晚看不清东西,还经常出现皮下出血,这是由于他偏食造成体内缺乏( )