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【单选题】
关于二的遍历,以下选项中描述错误的是
A.
二的遍历可以分为三种:前序遍历、中序遍历、后序遍历
B.
前序遍历是先遍历,然后访问根结点,最后遍历右子树
C.
后序遍历二的过程是一个递归的过程
D.
二的遍历是指不重复地访问二中的所有结点
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【单选题】What will happen if your insured car is stolen?
A.
You will have to suffer the loss.
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能激活胃蛋白酶原，供给胃蛋白酶所需的酸性环境
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可杀死随食物进入胃内的细菌
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可使食物中的蛋白质便性易于分解
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