单选题
The vocabulary and grammatical differences between British and American English are so trivial and few as hardly
【正确答案】
B
【答案解析】[试题分析] 本题考查，so as to结构的用法。
[详细解答] so as to引导的不定式作结果状语。so as to或 in order to+不定式常作目的状语。本题中不定式与句子的主语之间是动宾关系，因此应选用不定式的被动形式。