Scientists said that the winter of 2011 was _____ cold, and in fact it was much colder than predicted.

A．frozen

B．freezing

C．freezingly

D．froze

儿童生长发育描述不符的一项是（）。

A.生长发育是连续的过程

B.儿童神经系统发育相对较晚

C.小儿动作发育依次为抬头、坐、走

D.有个体差异

E.婴儿期前6个月发育速度最快