The objective of the study is to see the effect of the most commonly used GM crops on the birth rate, ( ) and weight gain of rat pups.
A.moral B.morale C.morality D.mortality正确答案D
The objective of the study is to see the effect of the most commonly used GM crops on the birth rate, ( ) and weight gain of rat pups.
A.moral B.morale C.morality D.mortality正确答案D
