—Why didn't you cry for help when you were robbed (被抢劫)?
—If I opened my mouth, they might find my four gold teeth. That would be !
A:bad
B:much worse
C:worst
D:the worst
如果三角形的三边长度分别为3a、4a、14,则a的取值范围是____
明清时期,世界形势发生了前所未有的变化,在这个背景下,明清时期的对外交往出现了与以往任何一个时代都不同的新局面。下列关于明清时期的对外交往的评价,错误的是( )
①BM与ED平行
②CN与BE是异面直线;
③CN与BM成60°角;
④DM与BN垂直.
--It is one I've ever seen (我曾经看过)
《红楼梦》中会出现的情节是( )