问题
名词解释
避病(Escape)
答案
参考答案:寄主品种在一定条件下避开病原菌的侵染而未发病的现象称为避病,包括时间避病和空间避病两类。
避病(Escape)
参考答案:寄主品种在一定条件下避开病原菌的侵染而未发病的现象称为避病,包括时间避病和空间避病两类。
Bob’s father is ill in bed. His mother does all the housework goes to buy medicine (药) for him. She is very . Now Bob’s mother is the house. She needs some water. She Bob to get some for . At the moment, Bob is a book in his bedroom. “Bob!” his mother finally comes to him and says, “ don’t you answer me?” Then she sees there’s some cotton (棉花) Bob’s right ear. She it out and asks, “Why are you doing that?” “You often me that your words go in my left ear and out of my right one. So I want to stop it.”
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