龈沟液中含量最高的抗体是（）
A.SIgA
B.IgA
C.IgG
D.IgM
E.没有特定抗体含量高
参考答案：C
Nowadays, too many children________ TV. That's bad for their eyesight and TV also keeps them from
communicating with others.[ ]
A．addicts to watching
B．are addicted to watch
C．addict themselves to watch
D．are addicted to watching
颧弓骨折常伴有（）
A.颅面分离
B.耳鼻出血
C.复视
D.张口受限
E.局部水肿
