The air ______ different gases _____ together.
#67407
A
consist of, mixing
B
is made up of, mixed
C
consisting of, mixed
D
makes up, mixing
推荐题目
He left school early, and as an adolescent, determined ______  in South American, set off from his home.
#65918
A
having a fortune
B
making his fortune
C
to spend a fortune
D
to make his fortune
We ___ each other the best of luck in the examination.
#83793
A
hoped
B
wished
C
expected
D
wanted