He asked me ___________ Zhang Hua came to school or not. 

— What would you like to have, meat or fish?

— _____________________.

— I would like to make an appointment for the meeting. Which day would you prefer, Tuesday or Thursday?

— _________________ 

It's ___________ to point to or talk about strangers in public.

— ___________________

— Once or twice a week.

当研究河段的水力学条件为________时，可考虑应用零维水质模型。（ ）

— Which city has _________population, Beijing, Guiyang or Nanchang?

— Beijing, of course.

电动机传动轴横截面上扭矩与转动轴的________成正比。

梁在集中力偶作用截面处________。

矩形截面梁，若截面高度和宽度都减小一倍，则其强度将提高到原来的________倍。