Danny! Where is my book? [ ]
A. There it is.
B. Fine, thanks.
C. No book for me.
答案:A
局限性牙周炎最好发的牙为为
A.前磨牙
B.尖牙
C.切牙
D.第一磨牙
E.C+D
晒烟是利用()调制而成的烟叶。