Writing in a straightforward as opposed to ______ style, the author produced ______ argument that shed new light on a controversial topic.
 
【正确答案】 C
【答案解析】 形容词词义辨析。空格1填入的形容词,修饰style,空格2填入的形容词,修饰argument。as opposed to表示对比关系,所以空格1填入straightforward(直接的,易理解的)的反义词,且与空格2相反。选项中,convoluted(复杂的);lucid(清晰的)符合要求。故答案为C。