This is a purely _______ problem, not a political one.
A. additional B. assiduous C. adamant D. academic
[academic]
academic adj.学术的、理论的
[/academic]
[additional]
additional 额外的、附加的
additive 添加剂
addendum 补充、附录
adder 蝰蛇
deaf as an adder 充耳不闻
[/additional]
[assiduous]
assiduous 勤奋的、好学的
insidious 阴险的、狡诈的
preside 主持
consider 考虑
[/assiduous]
[adamant]
adamant 固执的
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