《种子法》规定，调运或者邮寄出县的种子应当附有（）。
参考答案：检疫证书
I read many books, English books and geography books. [ ]
A. include
B. includes
C. to include
D. including
对于逆行性牙髓炎的患者，探诊检查最可能发现的是（）
A.牙龈出血
B.龈下牙石
C.釉突
D.溢脓
E.深牙周袋
