【正确答案】 B

【答案解析】[解析] 句子结构题。so as to和such as to都是“如此……以至于”，但so是副词不能作表语，而such是形容词可以作表语。如：The brilliance of his satires Was such as to make even his victims laugh．(他的讽刺技艺如此精湛，以至于被他讽刺的人都大笑起来。)[C]和[D]选项后面必须接从句，所以不能选。