Which of the following does paper burn in?
#42781
A
CO2
B
N2
C
He
D
O2
推荐题目
— Tomorrow we’ ll have an extra training for P.E exam . Be sure to be here on time! — No problem , I’ ll be here 10 minutes _____ .
#40179
A
sooner
B
later
C
more slowly
D
earlier
----There are sixty students in our class, and _________of us are boys.----Wow! You have forty girls.
#36383
A
one four
B
one third
C
two fifths
D
two thirds