单选题
______economic growth rates have stagnated over the last 6 months, we cannot expect any rise in the value of the dollar.
【正确答案】
B
【答案解析】逗号前后都已构成完整的结构,且横线位于句首,因此横线处应填入引导状语从句的从属连词。(A)so和(C)for是并列连词,故排除。根据句意,从句economic growth rates have stagnated over the last 6 months(在过去的半年里,经济增长率一直处于停滞状态)应表示原因,故选(B)as。