单选题 The beauty of the reflected images in the limpid pool was the poignant beauty of things that are ______, existing only until the sunset.

【正确答案】 B
【答案解析】ephemeral意思是“短暂的”，符合题意。其他选项意思分别的是：A．equitable公平的；C．euphonious悦耳的；D．evasive逃避的。