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【单选题】
同一种物质在晶体中的扩散系数（ ）在玻璃中的扩散系数。A.
大于
B.
等于
C.
小于
D.
无法比较
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【简答题】阅读理解。 As we know, there are differences between western culture and Chinese culture. We can see differences when we pay attention to the words that are used. Let's look at the words about describing a...
【简答题】阅读理解。 As we know, there are differences between Western culture and Chinese culture. We can see differences when we pay attention to the way some words are used. Let's look at the words about animals ...
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