If H2 burn in O2, we can get _____.
#29282
A
H2
B
H2O
C
O2
D
H2O2
推荐题目
People in the southwest of China are in great need of ______ this year because it hasn’t rained for a long time there.
#29579
A
food
B
water
C
drinks
D
vegetables
The camel comes from Africa. It’s African. It lives in the ________.
#29926
A
forest
B
grassland
C
desert
D
water