试题与答案

We all feel it is Jack that _________ fo

题型:选择题

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...

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