However，beyond that dolorous picture，there is a revolution at work in -考呗网

单选题However，beyond that dolorous picture，there is a revolution at work in world agriculture．

[分析]形容词辨析
dolorous表：忧伤的，悲痛的；A．illusive幻影的，错觉的，迷惑人的；B．blurry模糊的，不清楚的；C．reflective沉思的；D．grievous令人忧伤的；因此D为答案。

1Wilson could not control his deep jealousy at the thought of another man taking up his role as father．

2To reveal a military secret to the enemy is tantamount to treason．

3The house was situated on a hill over the village．