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Carbohydrates are the most abundant and ______ food sources of energy.A、less cos
Carbohydrates are the most abundant and ______ food sources of energy.A、less cos
游客
2025-03-12
40
管理
问题
Carbohydrates are the most abundant and ______ food sources of energy.
选项
A、less cost
B、least costly
C、least cost
D、lest costly
答案
B
解析
本题为近形词题。本句大意为“碳水化合物是最丰富也是最不昂贵的提供能量的食物”。本句缺少的部分应为the most abundant的同等成分，而least为最高级，costly为形容词“昂贵的”，所以答案为B)。
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