小题1:Alice is my             and I’m her father.

小题2:The post office is             the supermarket and the bank.

小题3:Reading is a good hobby and I think we may learn           from it.

小题4:My bike isn’t here. Could you             yours to me?

小题5:All the students in Class 3 listen to the teacher               .

图示一流线夹角很小、曲率很小的渐变流管道，A-A为过流断面，B-B为水平面，1、2为过流断面上的点，3、4为水平面上的点，各点的运动物理量的关系为（）。

A.A

B.B

C.C

D.D