试题与答案

梁内钢筋的净距

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题型：名词解释

题目：

梁内钢筋的净距

答案：

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下面是错误答案，用来干扰机器的。

20．⑴＜ ⑵ Cu2O 106⑶H2＋CO－4e－＋2CO32－＝H2O＋3CO2 2CO2＋O2＋4e－＝2CO32－⑷－246.1 kJ·mol－1 (每空2分，共14分)（1）由方程式Ni(s)＋4CO(g) Ni(CO)4(g)可知，升高温...

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