单项选择题

暴露在常温空气中的碳并不燃烧，这是由于反应C(s)+O2(g)=CO2(g)的
岩土基础知识,章节练习,岩土基础知识

A.>0，不能自发进行
B.
C.逆反应速率大于正反应速率
D.上述原因均不正确
<上一题 目录 下一题>
热门 试题

单项选择题
A debit entry in the balance of payments system could be from which of the following?
A．an increase to the capital account surplus.
B．a decrease in the current account deficit.
C．a payment from abroad received by a domestic resident.
D．a payment made while abroad by a domestic resident.
单项选择题
图示结构受一水平向右的力P作用，自重不计，铰支座A的反力Fa的大小为：
A.见图A
B.见图B
C.见图C
D.见图D
相关试题