The patent officer with my file explained to me that a plant variety is not a/an invention as it is a result of adjusting growth scientifically.
A. dealing; abrupt
B. dealt; innocent
C. deals; practical
D. dealing; valid
网友回答
A. dealing; abrupt
B. dealt; innocent
C. deals; practical
(答案→)D. dealing; valid
解析：考查分词用法和形容词辨析。Deal with与officer构成主动关系，所以使用现在分词短语Dealing with my file修饰名词the patent officer。valid有根据的;确凿的;令人信服的；根据句意可知D正确。