As equipment improved, satellites began __________ scientists __________ weather maps of the entire globe.
A.providing; for |
B.supplying; for |
C.offering; with |
D.providing ; with |
推荐套卷
As equipment improved, satellites began __________ scientists __________ weather maps of the entire globe.
A.providing; for |
B.supplying; for |
C.offering; with |
D.providing ; with |