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问题 填空题

按先根次序周游树（林）等同于按（）序周对应的二叉树。

答案

参考答案：前

解析：

按先根次序同游树正好等同于按前序法周游对应的二叉树，按后根次序周游树等于按对称序 法周游对应的二叉树。

完形填空

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用口号中词语的正确形式填空。

There once lived a boy named Woo Sing,   小题1:  father brought home a mirror. Woo Sing had never seen one before. So when he saw it for the first time, he didn’t understand   小题2: it was, but thought he saw   小题3:  boy, which made him very happy, for he thought the boy had come to play with him. He spoke to the stranger in a very friendly way, but received no reply. He laughed and waved at the boy, who did exactly   小题4:  same thing. Then he thought, “I’ll go closer. It may be that he doesn’t hear me”. But when he began to walk, the other boy imitated（模仿）him. Woo Sing stopped   小题5:  (think) about these strange actions, saying to himself, “This boy is fooling me. He does everything that I do;” and the more he thought about it, the   小题6:  (angry) he became and soon he noticed the boy became angry too. So Woo Sing  小题7:  (strike) the boy in the glass, but he only hurt his own hand and went  小题8: (cry) to his father, who said, “The boy you saw was  小题9:  image. This should teach you an important lesson, my son. You should never show your anger to others. Now remember that in real life when you strike   小题10: cause you’ll hurt yourself most of all.” 
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单项选择题

对扁桃体的描述，错误的是（）。

A.内侧面有鳞状上皮覆盖

B.表面黏膜向实质陷入形成扁桃体隐窝

C.外侧面与咽腱膜紧密连接

D.扁桃体实质为淋巴组织

E.扁桃体的主要供血动脉是面动脉扁桃体支
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