绕组的冷态电阻是指在（）测取的阻值。
A.环境15℃时
B.电机空转后
C.电机试验后
D.电机各部位温度约等于环境温度
参考答案：D
引起中药变质的外界因素是
A．水分
B．空气
C．温度
D．湿度
E．光线
______about wild plants that they decided to make a trip to Madagascar for further research.[ ]
A. So curious the couple was
B. So curious was the couple
C. How curious the couple was
D. The couple was such curious
