完形填空。从A、B、C、D四个选项中选出最佳答案。

    Mr. Smith lived in a village（村庄）. He had a few farms（农场） and about twenty people working for him. He often told them 1hard and be honest(诚实的).

    One day he went to a farm and worked with the workers there. Soon it was time 2 lunch. He put 3 nice bread on the table and went out. A few minutes later, he came back again but he couldn't find the bread. "Who ate 4 on the table?" he shouted.

    Some of the workers answered, "We didn't."  The others said, "We saw nothing."

    "Well," said Mr. Smith, "5 are a lot of mice(老鼠) in the rooms, you know. So I put some poison（毒药） in the bread. 6 they eat, they must die. Then I can kill them."

    As soon as he finished, four workers began to cry. "Oh, dear!"

    "7?" asked Mr. Smith.  "We ate the bread when you were out. We are going to die." One of them cried.  "8," Mr. Smith said 9 a smile, "I only 10 you. Use your head."

在脊髓的横切面上，可见相关结构，下列说法错误的是（  ）

神经元就是神经细胞．如图为神经元的结构模式图，相关结构名称标志错误的是（  ）

神经元就是神经细胞．如图为神经元的结构模式图，相关结构名称标志错误的是（  ）

下列人体有关器官的功能叙述中错误的是（  ）

下列人体有关器官的功能叙述中错误的是（  ）

下列关于人体泌尿系统结构与功能的叙述中错误的是（  ）

下列关于脑的结构和功能的叙述中，错误的是（  ）

缺乏维生素，人体的正常生长发育将会受到影响，甚至引发疾病．下列说法正确的是（  ）

缺乏维生素，人体的正常生长发育将会受到影响，甚至引发疾病．下列说法正确的是（  ）

反射是神经调节的基本方式，其中生来就有的反应为非条件反射．下列反射不属于非条件反射的是（  ）

反射是神经调节的基本方式，其中生来就有的反应为非条件反射．下列反射不属于非条件反射的是（  ）

人类有基于语言、文字等信息而发生的特有条件反射，下列反应只有人类才具有的是（  ）

如图为正常人和糖尿病人饭后血糖含量变化曲线图．请回答下列问题：

如图为正常人和糖尿病人饭后血糖含量变化曲线图．请回答下列问题：

乌贼能喷出墨汁，逃避敌害，这属于（  ）