The most frequent answer was ( ) mentioned by 75.%, whereas mutations were mentioned by 49.% and genetic damage by 36.%.
A.death B.cancer C.skin damage D.birth defects正确答案B
The most frequent answer was ( ) mentioned by 75.%, whereas mutations were mentioned by 49.% and genetic damage by 36.%.
A.death B.cancer C.skin damage D.birth defects正确答案B