—Do you still work in the factory ________ is friendly to you?

—_______, it is two years since I worked there.

A．whose manager; Yes

B．the manager of which; Yes

C．of which the manager; No

D．which manager ;No

晓钢想将刚买回来的一瓶的矿泉水从20℃加热到70℃（如图所示），那么这瓶水需要吸收的热量是   

A. 5×10⁵ J    

B. 4.25×10³ J    

C. 9×10³ J    

D. 1.26×10⁵ J