鼠笼式电动机F级绝缘的绕组,温度不得超过()℃。
参考答案:125
Good heavens! There you are! We__anxious about you, and we __you back throughout the night.
A.are; expect
B.were; had expected
C.have been;were expecting
D.are; were expecting
空间有一平面,在W面投影依旧为一平面,H面的投影为一直线且平行于Y轴,则该面是()。
A.水平面
B.正平面
C.侧平面
D.都不是