What is the subject discussed in the text
An exciting historical event.
B. A modem treasure hunt.
C. The attraction of Masquerade.
D. The importance of logical thinkin
下面关于揖作型数据与分析型数据之间的区别的说法中，哪个是错误的
A. 分析型数据是经常更新的
B. 分析型数据支持管理需求
C. 操作型数据是面向应用的
D. 操作型数据支持日常操作
中药变色的主要原因是
A. 药材中所含的色素起的化学变化
B. 物理变化
C. 贮藏时间过长
D. 采收加工不当
E. 温度过高
What is the meaning of "the organic trend" as the words are used in the text
A. Growing interest in organic food.
Better quality of organic food.
C. Rising market for organic food.
D. Higher prices of organic foo
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