题干
She thinks the best way ________ English is ________ English magazines.
A：to learn, read
B：to learn, by reading
C：learn, reading
D：learning, read
答案(点此获取答案解析）
B
CO(g)+H2(g)，CO(g)+H2O(g)
CO2(g)+H2(g) 当反应达平衡时，测得c(H2)=1.9 kJ·mol-1，c(CO)="0.1" kJ·mol-1，则CO2的浓度为
