关于牙源性感染的概念，错误的是

A．病原菌可通过牙周组织进入体内

B．病原菌可通过病灶牙根尖进入体内

C．感染可向颌面部间隙扩散

D．牙源性感染中儿童更多见

E．智齿冠周炎也是牙源性感染的常见原因

___________ that I want to eat another two.

A．Such delicious cakes are they

B．So delicious they are cakes

C．Such delicious cakes they are

D．So delicious cakes they are