In face of the deadly disease, people are united in the belief that experts around the world should __________ with each other for the final success.
A.cooperated B.cooperate C.fought D.fight正确答案B
In face of the deadly disease, people are united in the belief that experts around the world should __________ with each other for the final success.
A.cooperated B.cooperate C.fought D.fight正确答案B