The farming methods have been______improved with the inventfion of the new machine.
- Aefficiently
- Bproficiently
- Cprofessionally
- Dintentionally
搜答案，更轻松！
The farming methods have been______improved with the inventfion of the new machine.
解析：句意：随着新机器的发明，种植方法已经很有效地改进了。本题考查副词词义的辨析。efficiently有效率地；proficiently熟练地，精通地；professionally专业地，职业地；intentionally故意地，蓄意地。