— My cousin is very clever but he doesn't work hard at his lessons.

— ______.

[       ]

A. So is my little brother

B. Neither does my little brother

C. So it is with my little brother

D. Neither is my little brother

已知：①1 mol H₂分子中化学键断裂时需要吸收436 kJ的能量②1 mol Cl₂分子中化学键断裂时需要吸收243 kJ的能量③由H原子和Cl原子形成1 mol HCl分子时释放431kJ的能量。下列叙述正确的是    （  ）

A．反应物总能量为679kJ

B．生成物总能量为431kJ

C．氢气和氯气反应生成2 mol氯化氢气体，反应放出183 kJ·mol^-1能量

D．氢气和氯气反应生成2 mol氯化氢气体，反应吸收183 kJ·mol^-1能量