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问题 单项选择题

第四自然段的主要意思是 ( )

A．啮齿类动物是谷物的侵略者

B．啮齿类动物主要包括黄鼠、田鼠和家鼠

C．磷化锌是一种有毒的化学药剂

D．磷化锌是谷物的朋友，它可以毒死啮齿类动物

答案

参考答案：A

听力题

Hi! My name is Shen Gang. I am a schoolboy. My __小题1:_____ is far from my home. I must__小题2:____ up early in the morning. I usually go to school by bus. Every day it takes(花费) me about half an hour to get there. I have no __小题3:______ for breakfast at home. I often have some bread___小题4:_____ breakfast on my bike. I don’t __小题5:_____ to be late for the morning exercises(早操). I have lunch____小题6:___ school. Sometimes I ___小题7:__ basketball with my classmates after school. I often get __小题8:______at about 5:30 p.m..
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单项选择题

由于上皮坏死脱落而使组织形成凹陷，有炎症细胞浸润和纤维素渗出称（）

A.被覆黏膜

B.咀嚼黏膜

C.特殊黏膜

D.糜烂

E.溃疡
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