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

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

admin2012-04-26  33
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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