What are the two types of foods called？

A.NTSC 105% typ

B.NTSC 81.5% typ

C.NTSC 100% TYP

What is the two speakers' relationship？

A．Teacher and student.

B．Husband and wife.

C．Salesman and customer.

A.who，what

B.what，what

C.what，who

D.who，who

A.What

B.That

C.All

D.It

What’S the relationship of the two people？

A.Teacher and student．

B.Father and son．

C.Mother and son．

D.Sister and brother．

What is the possible relationship between the two speakers？

A．Master and servant.

B．Teacher and student.

C．Fellow workers.

请帮忙给出正确答案和分析，谢谢！

What is the attitude of the author towards the two scientists？

A．Pro-Newton

B．skeptical

C．Pro-Einstein

D．objective