It’s necessary for human beings to breath _______ and plants can produce it.
#17259
A
CO2
B
H2
C
O2
D
N2
推荐题目
—I’m going to Hainan on vacation next week.-- __.
#17206
A
Have a good time
B
Not at all
C
Thank you
D
I have no idea
In Australia, after you do something well, “______” will often be said to you.
#17256
A
Well done
B
Good job
C
Good on ya, mate
D
congratulations
Pandas are our Chinese treasure. They feed on(主食) __________.
#17277
A
bamboo
B
animals
C
meat
D
vegetables