选出不是比喻句的一项（ ）
A：小艇有点像独木船。
B：船头和船艄向上翘起，像新月的样子。
C：小艇行动轻快，灵活仿佛一条蛇。
—When do you usually eat __________?
—At a quarter to seven in the evening.
They have taught me to work hard.
对神经调节有关的叙述错误的是（ ）
