以下说法中不正确的有( )
一种三角巾的形状是等腰直角三角形,直角边长8分米.现有一块长4米,宽16分米的长方形白布,用它最多可以剪出____块这样的三角巾.
The crocodile is very dangerous but we can't harm it, because it belongs to the ____(danger) species and is facing up to dying out and needs protection.