The conservation group was （） in its opposition to the new airpo

The conservation group was （） in its opposition to the new airport.
A、rough
B、troublesome
C、tenacious
D、uninterrupted
【正确答案】：C
【题目解析】：本题考查形容词辨析。rough a. 粗糙的，粗野的。例：Don’t try any rough stuff with me! 别想对我粗野！troublesome a. 令人烦恼的。例：a troublesome cough 烦人的咳嗽tenacious a. 执着的，坚决的。例：She is tenacious in defense of her rights. 她坚决维护自己的权利。 uninterrupted a. 不间断的，连续的。例：This enables the healing process to continue uninterrupted. 这能使愈合进程连续不断。句子中该形容词对应的对象是“反对新建机场”，所以C选项执着的，坚决的最符合题意。句意：自然资源保护组织坚决反对建新机场。