题目

植物体细胞杂交技术的结果是    A.产生杂种植株    B.产生新的细胞壁       C.原生质体融合    D.形成愈伤组织 答案：AMy parents often tell me ________ too much junk food because it's bad for my health.A．not eating B．not to eatC．eating D．to eat