【单选题】After the school sports, our head ______ the prizes.
【单选题】Your body language _____ your real emotion.
【单选题】降低电源电压调速机械特性硬度( ),调速平滑性好,损耗较小,投资较大。不变
【单选题】要使他励直流电动机调速时保持原来的机械特性硬度,则应采用( )
【判断题】降低电源电压调速前后机械特性的斜率不变,硬度较高,负载变化时,速度稳定性好。
【单选题】降低电源电压调速机械特性硬度( ),调速平滑性好,损耗较小,投资较大。
【单选题】What does the woman mean?
A.
She wants the man to buy it.
C.
She doesn't want to buy it.
【单选题】When he opened the box, it ____________ a bad smell.
【单选题】What does the woman mean?
B.
She doesn't want a drink.
C.
She wants to give the man a drink.