1.选择题- (共2题)
1.甲醇质子交换膜燃料电池中将甲醇蒸气转化为氢气的两种反应原理是( )
①CH3OH(g)+H2O(g) = CO2(g)+3H2(g) △H =" +" 49. 0 kJ·mol-1
②CH3OH(g)+1/2O2(g) = CO2(g)+2H2(g) △H =-192. 9 kJ·mol-1
下列说法正确的是 ( )
①CH3OH(g)+H2O(g) = CO2(g)+3H2(g) △H =" +" 49. 0 kJ·mol-1
②CH3OH(g)+1/2O2(g) = CO2(g)+2H2(g) △H =-192. 9 kJ·mol-1
下列说法正确的是 ( )

2.单项选择- (共4题)
3.
The headmaster has got a good education ___ so the school is doing well.
The headmaster has got a good education ___ so the school is doing well.
A.thought | B.thinking | C.idea | D.sense |
试卷分析
-
【1】题量占比
选择题:(2道)
单项选择:(4道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:0
7星难题:0
8星难题:4
9星难题:0