【判断题】机械无级自动变速器的传动比可以在一定范围内连续变化。
【简答题】()化原则使物流设备能发挥最大的效能,并使物流系统整体效益最优
【简答题】小题1:I am poor in speaking English because I don’t have the correct _____. 小题2:In the past few years, we have _____in saving thousands of people in er. 小题3:I think they have gone to the airport to ...
【单选题】She has been saving money in the past two years, so she is ___ that in the coming summer she will be able to afford a journey abroad.
【简答题】She has been saving money in the past two years, so she is ______ that in the coming summer she will be able to afford a journey abroad.A. confident
【判断题】全预应力混凝土梁从施工开始,到正常使用,直至承载能力极限状态,混凝土均不会产生弯曲裂缝。( )
【单选题】Which of the following italicized part indicate concession?
A.
He has studied martial arts for years .
B.
She has not succeeded for her effort .
C.
Mary has been saving up for the upcoming holiday .
D.
I would have done it if it had not been for you .
【简答题】She has been saving money in the post tow year, so she is ________ that in the coming summer she will be able to afford a journey abroad.