如图,点A是反比例函数图象上一点,过点A作AB⊥y轴于点B,点C、D在x轴上,且BC∥AD,四边形ABCD的面积为3,则这个反比例函数的解析式为 ____
有关亚马孙河流域热带雨林的叙述,错误的是( )
第二次世界大战中,同时满足 “闪击战”、“海战”、“日本发动”这三个条件的著名战役是( )
如图,ABCD—A1B1C1D1是正方体,B1E1=D1F1=A1B14,则BE1与DF1所成角的余弦值是( )
____.
—Which of the two cameras are you going to buy?
— I'll buy______ of them because I want to give one to my best friend.