单选题 The temperatures are somewhat lower than the average temperature in May this year.
【正确答案】 C
【答案解析】[解析] 题干:今年五月份的气温略低于往年的平均温度。somewhat稍微,有点。rather在一定程度上;very很,非常;a little少许,稍微;less较少的,更少的。故答案为C。