A:CH5CH2OH →170∘C浓H2SO4 CH2=CH2+H2O↑
B:CH5CHBrCH5+NaOH →△乙醇 CH5CH=CH2↑+NaBr+H2O
C:
D:2CH3OH →△浓硫酸 CH3OCH3+H2O
— How many tomatoes do you want?
— __________.
The plan they are considering improving greatly.