If H2 burn in O2, we can get _____.
#29282
A
H2
B
H2O
C
O2
D
H2O2
推荐题目
- How far is it from here to Huangshan Mountain?-- About in a car.
#29854
A
3 hours’ ride
B
3 hours’ walk
C
3 hours’ flight
D
3 hours
He told me with ________ that he had no choice but ________ the fact of his son’s death.
#28332
A
sadly, to accept
B
sadness, accept
C
sad, to accept
D
sadness, to accept