2. 外语
  3. To ______ the temperature of the new machine, the researchers had to work for hours.

To ______ the temperature of the new machine, the researchers had to work for hours.

admin2014-08-07  25
问题 To ______ the temperature of the new machine, the researchers had to work for hours.
选项 A、turn
B、measure
C、find
D、investigate
答案B
解析
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