解释“G1½LH”的含义，查表确定其大经和螺距具体数值。
查看答案
Mr.G最后把苹果分给Mr.B了吗？
A. YES
B. NO
When ΔH is negative, which of the following is correct in terms of the heatexchanged?
A. The heat is a reactant.
B. The heat is a product.
C. The heat is neither a reactant nor product
D. The heat is both a reactant and a product
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