选出你所听到的句子( )
A:It has small eyes and big ears.
B:It has small ears and big eyes.
(Ⅰ)记甲恰好击中目标2次的概率;
(Ⅱ)求乙至少击中目标2次的概率;
(Ⅲ)求乙恰好比甲多击中目标2次的概率;
下列关于蓝藻的有关描述,正确的是( )