阅读理解。根据短文内容判断句子正(√)误(×)。

      Wang Bin is an accountant. He works in a bank. He helps the people use their money well. He likes working

with numbers. He goes to work by subway, but he walks home. His mother likes helping people. She is a

policewoman. She goes to work by motor cycle.

( ) 1. Wang Bin is an engineer.

( ) 2. He likes working with numbers.

( ) 3. He goes home on foot.

( ) 4. His mother is a cleaner.

( ) 5. His mother goes to work by car.

黑体处于不同的温度下，辐射曲线不同，但有一个共同的规律，那就是随着温度的升高，最大辐射强度波长会逐渐往短波长方向移动。”这一科学观点的提出有助于下列哪一理论的研究（）

A.经典力学

B.相对论

C.量子假说

D.自由落体定律