1.选择题- (共3题)
3.下列化学方程式的书写和注明的反应类型都正确的是 ( )
①Mg+O2═MgO(化合反应)
②2H2O {#mathml#}{#/mathml#} 2H2↑+O2↑(分解反应)
③3Fe+2O2═Fe3O4(化合反应)
④CaCO3 {#mathml#}{#/mathml#} CaO+CO2↑(分解反应)
2.单项选择- (共3题)
4.
They’re ______ choosing a cautious policy in order to avoid a risk in such an important event.
A.thoroughly | B.deliberately | C.carelessly | D.naturally |
5.
If what parents say is not ______ with what they do, it will have a bad effect on their children.
A.contrary | B.consistent | C.confident | D.considerate |
试卷分析
-
【1】题量占比
选择题:(3道)
单项选择:(3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:3
7星难题:0
8星难题:0
9星难题:0