Studies have shown that humans working with machines are ________ than a human o

游客2023-09-19  29

问题 Studies have shown that humans working with machines are ________ than a human or a machine working alone.

选项 A、more effective
B、most effective
C、effective
D、least effective

答案 A

解析 根据句意,存在比较级标志词than,故应用形容词effective比较级形式。故选A。
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