The machine must be kept within a temperature range of 50 to 75 degrees Fahrenhe

游客2025-06-17  1

问题 The machine must be kept within a temperature range of 50 to 75 degrees Fahrenheit to achieve ______ performance.

选项 A、diverse
B、optimal
C、sequential
D、relative

答案 B

解析 optimal最佳的
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