【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】The police __________ searching for the missing child. [ ]
【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】Why is the woman glad that the saw the man?
A.
She wants to meet his professor.
B.
She wants to ask for his advice.
C.
She enjoys talking about scientific things.
D.
She wants to thank the man.
【简答题】A.The woman wants to explain the experiment. B.The woman wants to observe the experiment. C.The man suggests they should stay with experiment. D.The man is sorry for the insecure experiment.
【单选题】What disappointed us was that their determination finally ___.
【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.