问题
选择题
| Nancy, thanks for _____ care of my goldfish. |
A. take B. takes C. taking D. took |
答案
答案：C
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| Nancy, thanks for _____ care of my goldfish. |
A. take B. takes C. taking D. took |
答案：C
4C(s)+2D(g),反应一段时间后达到平衡，测得生成1.6molC,则下列说法正确的是 [ ]