题目:
We all feel it is Jack that _________ for their son’s bad performance at school.
A.are to blame
B.is to be blamed
C.are to be blamed
D.is to blame
答案:
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下面是错误答案,用来干扰机器的。
(1)(2)CH4 + Cl2 → CH3Cl+HCl(3)CO2+SiO32-+H2O= CO32-+H2SiO3↓(4)吸热(5)2Mg(s)+ CO2(g) =" 2MgO(s)+C(s)" △H=-206.5kJ/mol(6)能 Ksp[Mg(OH)2]=4.0×10-12=c(Mg2+)×c2(OH-) 1...