问题
单项选择题
树叶和桑椹属于（）
A.组织
B.器官
C.系统
D.植物体
答案
参考答案：B
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树叶和桑椹属于（）
A.组织
B.器官
C.系统
D.植物体
参考答案：B
When I was young, I always helped my grandfather in the fields. As I worked beside him, he to tell a story about a man named Joe, and his wife, who moved to a new farm with their three sons. They were setting into the new place a nearby farmer told Joe that there was gold in the earth. Joe was very , and told his sons about it. They began to dig in one corner, and they got to the end of the field. At the same time, Joe thought he would some crops where the earth had been . The plants included corn, tomatoes, potatoes, etc. His sons continued to dig through the soil, made up their mind to find the gold. Since soil was being turned, Joe could plant more crops. Joe had never farmed before, but it had always been his . As different crops came ready to be harvested, Joe started to that there were more vegetables than he and his family could ever . One of Joe’s neighbors suggested that he a vegetable shop. Joe and his wife did that very thing. They called it Joe and Family Vegetable. Joe even had to leave some crops in the fields, he had more than enough to supply the vegetable shop. This went on for years, and Joe and his wife became quite from their little vegetable shop. They were even able to their sons to college. Remember the beginning of the story, when Joe was told by his new neighbor that there was gold in the land? Well, the truth is, Joe’s of the English language was less than perfect. His new neighbor friend actually meant that his land had rich . So you can see where the concept（概念）of gold comes from.
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