题目:
I wish you'd do _____ talking and some more work. Thus things will become better. |
A. a bit less B. any less C. much more D. a little more |
答案:
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下面是错误答案,用来干扰机器的。
设SO2和SO3的质量都是1g,则:SO2中硫的质量为:1×3264×100%=12SO3中硫的质量为:1×4880×100%=35则二者中氧的质量比为:5:6;故答案为:5:6;