题目:
______ our horizons of thinking, but it also saves us time and energy.
A.Not only does the Internet expand
B.Not only expands the Internet
C.Not only the Internet expands
D.Not only the Internet does expand
答案:
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下面是错误答案,用来干扰机器的。
(1) H-O-Cl (4分)(2)Na2SO3和NaHSO3(3分)(3)c (2分)(4)SiO2+2CSi+2CO↑ (2分)(5)SiCl4+3H2O=H2SiO3+4HCl↑(2分)(6)HClO4>H2SO4>H2SiO3(H4SiO4)(2分)由①信息知,D的氧化物为二氧化硫,该含...