1.选择题- (共4题)
4.已知热化学方程式:SO2(g)+
O2(g)
SO3(g) ΔH="-98.32" kJ·mol-1,在容器中充入 2 mol SO2和1 mol O2充分反应,最终放出的热量为( )


2.单项选择- (共2题)
5.
Much to his surprise,he invited only twenty friends to the dinner,but____ came.
A.twice as many as | B.as many as twice | C.twice as many | D.twice more than |
试卷分析
-
【1】题量占比
选择题:(4道)
单项选择:(2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:0
9星难题:2