If H2 burn in O2, we can get _____.
#29282
A
H2
B
H2O
C
O2
D
H2O2
推荐题目
——What language does the woman speak?——She speaks . She’ s from Australia.
#29473
A
Japanese
B
Chinese
C
French
D
English
I like ________, but my brother likes___________.
#29726
A
broccoli, salad
B
apple, banana
C
oranges, broccolis
D
French fries, salads
Some accidents have happened on the road recently. So we should pay attention to the __________ problems.
#27750
A
traffic
B
action
C
path
D
food
Edward, you have grown up. You should learn to make your own room _____ .
#29816
A
empty
B
noisy
C
dirty
D
tidy