We cannot emphasize the importance of improving the public awareness and saving natural esources too much.
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Part II WritingDirections: Write an essay on the following topic. The topic has an outline you can followTopic: My View on Animal TestingNowadays animal experiments are widely used to develop new medicines and to test the safety of other products. Some people argue that these experiments should be banned because it is morally wrong to cause animals to suffer, while others are in favor of them because of their benefits to humanity. Discuss both views and give your own opinion.
下列专属于国家所有的是
A. 矿藏
B. 水流
C. 海域
D. 无居民海岛
2006年真题 提取一般苷类化合物常用的溶剂是
A. 乙醚
B. 含水乙醇
C. 氯仿
D. 石油醚
E. 丙酮
2004年真题 单糖的绝对构型是指在Fischer投影式中
A. 距羰基最远的不对称碳原子的构型
B. 距羰基最近的不对称碳原子的构型
C. 2位不对称碳原子的构型
D. 3位不对称碳原子的构型
E. 端基碳原子的构型