题目内容:
ThefollowingstatementsaretrueEXCEPT
A.GMcropsaregood.towildlifeinAmerica. B.conventionalcropsrequiremorechemicalsforprotection.
C.onestudyshowsthatGMcropsareharmfultoanimals.
D.GMfoodshavedonenoharmtoAmericans.
参考答案:
答案解析: