The veterinary health certificate for SVC-susceptible fish must be dated no more than ____ days prior to the date of entry to the United States.
A.60
B.30
C.10
D.7
正确答案是B
The veterinary health certificate for SVC-susceptible fish must be dated no more than ____ days prior to the date of entry to the United States.
A.60
B.30
C.10
D.7
正确答案是B