饿狗为食物而争斗 ____ A、繁殖行为
蚂蚁间的分工合作 ____ B、防御行为
雌鸟街虫喂养雏鸟 ____ C、社群行为
金龟子遇敌假死 ____ D、攻击行为
— You think studying English well is difficult, but we know interest can be any way.
一 Thank you for your advice.
I am not good at singing, so I can't sing so ________ as the other students.
给加横线的字选择正确的解释。
孔子不能决也。( )
