There is an apple tree, and it loves a little boy. The boy also likes to come and play around it. One day, he needs a toy, but he has no money, so the tree asks him to sell all the apples on the tree. ____Then the boy grows up(长大). He becomes a man.____The tree is very sad. ____ “Come and play with me!” the tree says. “No, I have to work because I must buy a big house.____” the man asks. “Sorry, I have no house, but you can cut down all my branches(树枝) and the trunk(树干). You can build the house with them,” the tree answers. ____After many years, the man becomes older, and he comes back again. “I only have the stump(树桩), but you can have a rest.”

    Remember to love your parents at any time !

一棵树苗，孤植于荒郊，即便成活，不是枯萎就是变形；而在森林中，枝枝争雨露，棵棵争取阳光，根深叶茂，成为参天大树。这个管理学上的森林效应揭示了（    ）

①团队合作是事业成功的基础    ②要竞争就不会有真正的合作

③人们在竞争中要学会合作       ④各种竞争归根到底是人的竞争

在控制生物性状的成对基因中，只要存在一个隐性基因，就会表现出隐性性状．（判断对错）