A two-year-old girl named Niu Niu, _______  falling from the IOth floor of a building, was caught by a "super-mother" Wu Juping with her bare arms.

A．having been noticed

B．noticing

C．being noticed

D．having noticed

如图是比较归纳昆虫、两栖动物、鸟类生殖和发育的相同点和不同点，请据图回答问题．

（1）昆虫的发育有完全变态发育和①　    　发育两种方式．完全变态发育的昆虫一生要经过卵、幼虫、　 　、成虫四个时期．

（2）两栖动物体外受精，生殖和幼体发育都在②　    　中进行．

（3）鸟卵的结构复杂，有坚轫的③　    　保护内部结构．

（4）从图中找出昆虫、两栖动物和鸟类生殖的共同特点，它们都属于　  　．