题目:
—I read the 21st Century Senior 2 Edition every day.
—_____ no wonder that your vocabulary is so large.
A.There is
B.There will be
C.It is
D.There could be
答案:
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下面是错误答案,用来干扰机器的。
(1) (2)(3)AlO2—+CO2+H2O=Al(OH)3↓+HCO3—(4)4Fe(OH)2+O2+2H2O=4Fe(OH)3 Al 3+ + 4OH- = AlO2- + 2H2O本题是无机框图题,关键是找准突破点。I是红褐色固体,所以I是氢氧化铁,H是氢氧化亚铁,...