单选题
[2008.04]The farming methods have been ______ improved with the invention of the new machine.
A.efficiently
B.proficiently
C.professionally
D.intentionally
正确答案:A
答案解析:本题考查副词词义辨析。句子翻译为:由于新机器的发明,人们已经高效率地改进了农业耕种方法。A高效率地B熟练地C职业地、专职地D故意地、有意地。