题目内容
一级反应有效期计算公式是
2021-10-14
A.lgC＝（-k/2.303）t＋lgCo
B.t0.9＝Co/10k
C.C-Co＝-kt
D.t0.9＝0.1054/k
E.t1/2＝0.693/k
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