What did researchers at Texas A&M University recently announce?
A.They have cloned a dog.
B.They have cloned a cat.
C.They have cloned a cat and a dog.
D.They have cloned a dog with cat genes.
正确答案是B
What did researchers at Texas A&M University recently announce?
A.They have cloned a dog.
B.They have cloned a cat.
C.They have cloned a cat and a dog.
D.They have cloned a dog with cat genes.
正确答案是B