苯丙酮尿症患儿的特征性临床表现是（）

A.智能发育落后

B.惊厥

C.毛发皮肤色泽变浅

D.肌张力增高

E.尿和汗液有鼠尿臭味

The mobile phone has influenced people’s life a lot since it ______.

A．invents

B．invented

C．is invented

D．was invented