The open and close of stoma is NOT controlled by______
A: Light
B: CO2
C: Internal clock
D: Calcium
A: Light
B: CO2
C: Internal clock
D: Calcium
举一反三
- The shop ___ at 8 o’clock in the morning. A: open B: to open C: opens
- Could you _____the window? I feel a little cold. A: please not open B: please not to open C: not please to close D: please not to close
- Whenyou _____ home,youcan _____thebreadassoonasyou _____ thedoor. A: come;look;open B: come;smell;open C: go;smell;close D: come;look;close
- 关闭游标的命令是（） A: use B: close C: open D: close cursor
- What time ___ the shop ___ on Sunday? A: do/ open B: does/ open C: is/ close D: is/ opened