If H2 burn in O2, we can get _____.
#29282
A
H2
B
H2O
C
O2
D
H2O2
推荐题目
If you want to do better in playing the piano, you need more ____.
#29884
A
technology
B
practice
C
pleasure
D
challenger
— Can you see the ______? — Sorry, I can’t see them.
#29245
A
tree
B
Chinese books
C
English book
D
apple
—Would you please pass me something to drink?— What about some ______?
#29786
A
beef
B
fish
C
juice
D
bread
— Could you tell me something about the boy who helped you just now ?— Sorry, I know nothing about him. We are ______.
#29246
A
friends
B
neighbors
C
classmates
D
strangers