【单选题】-What are you going to be when you grow up? -I’m going to be _____ English teacher in ______ university.
【单选题】流体运动的不稳定性,是指
B.
某种运动状态的流体运动受到扰动后,不能恢复到原来运动状态的特性。
【判断题】对于弹性驱动,渗流的运动要素不仅是位置坐标的函数,而且是时间的函数,说明考虑流体及岩石的渗流是不稳定渗流。
【简答题】西班牙人文主义文学的巅峰是塞万提斯的《 》这部小说。
【单选题】— What are you going to be? — _______________________ [ ]
A.
He is going to be an actor.
B.
She is going to be a teacher.
C.
I am going to be an engineer.
【简答题】湍流时,管道截面上某一点(欧拉考察法)流经的质点运动速度大小和方向具有不确定性,有轴向速度,还有径向速度,是一合成速度,且该点的速度具有不稳态性,因此管内的湍流流动应该是不稳定过程,然而,由于在用欧拉法考察流体内某一确定点的速度时,湍流的()速度在一定的时间范围内却具有不变的数值,所以管内的湍流可以是稳态的。
【判断题】对于弹性驱动,渗流的运动要素不仅是位置坐标的函数,而且是时间的函数,说明考虑流体及岩石的渗流是稳定渗流。
【单选题】— What are you going to be after you finish college? — I'm going to be a singer, but my parents me to be a doctor. [ ]
【单选题】— ______________________ — This afternoon. [ ]
B.
What are you going to do?
【简答题】选择正确的选项完成对话。 A What are you going to do this year? B Linda, what are you going to be when you grow up? C That sounds great D What kind of job do you want? E Why are you going to get a part time job? P...