皮皮学，免费搜题
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【简答题】
GMO proponents note that because of the safety testing requirements, the risk of introducing a plant variety with a new _________ or toxin is much smaller than from traditional breeding processes, which do not require allergen tests.
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【简答题】Dragon Boat Festival
【单选题】Dragon Boat Festival
A.
enjoy dragon boat races
B.
eating Jiaozi(dumplings)
C.
visit graves of ancestors
D.
ascending a height
【简答题】比赛时球从标志杆上方进入对方场区是好球。()