A:should, would
B:could, did
C:might, should
D:should, had
“凡益之道,与时偕行”,意思是:变通趋时,把握时机,做出适于时代需要的判断和选择。以下做法中,不符合这一道理的是( )
如图,AD、BE分别是△ABC中BC、AC边上的高,AD=4,AC=6,则sin∠EBC=____.