Companies can scale ( ) as computing needs increase and then scale ( ) again as demands decrease.
A: up,down
B: down, up
C: on,off
D: off, on
A: up,down
B: down, up
C: on,off
D: off, on
举一反三
- A big tree was ___ and then ___for firewood.A. cut down; cut into B. cut up ; cut inC. cut down; cut up C. cut in; cut off A: cut down; cut into B: cut up; cut in C: cut down; cut up D: cut in; cut off
- 47（） A: down B: up C: off D: out
- 45（） A: up B: down C: off D: back
- It’s warm inside. You can take( )your coat. A: on B: up C: down D: off
- I can’t get my boots （）. They are too tight. A: off B: down C: away D: up