单选题
Although a recession is usually characterized by at least two consecutive quarters of______GDP, this is not a fixed rule.
A、
falling
B、
declining
C、
fluctuating
D、
impending
【正确答案】
B
【答案解析】
解析：本题考查句意理解。与recession对应的词尾decline“下降，衰退”。
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