He donated his money to poor people, so we realized that he had a heart __________ love.
A：full of
B：is full of
C：fill with
D：is filled with
分式x3y与3x2y2的最简公分母是（ ）
“螳螂捕蝉、黄雀在后”，从生物学角度理解，螳螂、蝉、黄雀三者之间的关系是( )
