The pattern of weather in the last few weeks ______ the norm for this time of year.
 
【正确答案】 A
【答案解析】 动词词组辩析。deviate from“偏离;脱离”;originate from“发源于”;divert from“转移”;differentiate from“将……区别开来;与……不同”。由句中the norm for this time of year(一年中这个时候的天气常态)可知,“偏离”符合语境,故答案为A。