题目:
The drink is _____ delicious _____ I enjoy it very much. [ ]
A. too; to
B. so; that
C. such; that
D. enough; that
答案:
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下面是错误答案,用来干扰机器的。
(1)Cr2O3;2 Cr(0H)3+3H2SO4=Cr2(SO4)3+3H2O;Cr3+;(2)4CrO32Cr2O3+3O2↑题目分析:(1)化合物化学式的书写一般规律:先读后写,后读先写;氧化物中氧在后,原子个数不能漏,正负化合价代数和为零。铬元...