语法词汇练习 语法大全 语法详解 英语听力 
If H2 burn in O2, we can get _____.
#29282
A
H2
B
H2O
C
O2
D
H2O2
下一题
推荐题目
As young adults, it is our ____________to help the disabled.
#29587
A
work
B
job
C
duty
D
task
      is my favorite sport.
#27875
A
Skating
B
Animals
C
Reading
D
Music
 If you want to do better in playing the piano, you need more ____.
#29884
A
technology
B
practice
C
pleasure
D
challenger
Is this_____the railway station?
#28012
A
the way for
B
the way to
C
the way from
D
going for
Mary takes a lot of exercise every day and she is always full of_______.
#27754
A
knowledge
B
energy
C
change
D
damage