红外测温时，电流致热型设备最好在（）负荷下进行检测
A.低峰
B.高峰
C.无
参考答案：B
Which of the following is NOT true of meditation a. It relieves the pain of cancer. b. It counteracts the effect of depression. c. It has mystic elements. d. It has long been used as a cure-all.
