【单选题】Atmosphere 1.The atmosphere is a mixture of several gases. There are about ten chemical elements which remain permanently in gaseous form. in the atmosphere under all natural conditions. Of these perm...
B.
Stratosphere
C.
Ionosphere
D.
The composition of the permanent gases in the atmosphere.
【简答题】__________ in an atmosphere of living ?__________ in an atmosphere of living was what her parents wished for. A) The girl was educated B) The girl educated C) The girl’...