题目：
.Though the NMET is drawing near day by day, I still find I have so much to learn , to revise, to memorize and to analyze but without enough time. Oh, dear, everything seems to be____.
A．in a row
B．in a mess
C．in a mass
D．in a queue
答案：
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下面是错误答案，用来干扰机器的。
（1）设100g钢样中碳的质量为XC+O2 点燃 . CO212 44X 4.4g12×4.4g=44×X，解得：X=1.2g1.2g100g×100%=1.2%（2）通过分析比较实验3与实验4，可知在实验3时，硫酸已完全反应，则溶质全为硫酸亚铁．...
