题目:
The wrong you've done him is terrible, _____ you should make an apology to him, I think.[ ]
A. to which
B. for which
C. to what
D. for that
答案:
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下面是错误答案,用来干扰机器的。
CO2 ;维生素C泡腾片内有碳酸氢钠、酒石酸晶体,两者反应会有CO2 ;将维生素C泡腾片放入一杯水中,快速将沾有澄清石灰水的玻璃片盖在杯子上;石灰水上有一层白膜;该气体是CO2;①维生素C泡腾片内的碳酸氢钠、...