问题
单项选择题
当物系中各组份达到相平衡时，物系中最少的纯物质被称为（）。
A、组份数
B、独立组份数
C、相关组份数
D、自由度
答案
参考答案：B
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当物系中各组份达到相平衡时，物系中最少的纯物质被称为（）。
A、组份数
B、独立组份数
C、相关组份数
D、自由度
参考答案：B
| 根据短文内容，从七个句子中选择五个填空。 | |
| A crow (乌鸦) wants to drink, 1______. He looks here and there. At last, he cries, "I can see a jar (罐子) and there is some water in it." 2______, but he can't. "How can I get the water?" he cries. "I can put my break (喙) quite close to it." 3______. "What can I do? I want to drink." 4______, then he picks up a small stone (石 头) in his break and carries it to the jar of water and drops it into the jar. "5______, and I can drink," says the crow.
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