下列有关实验现象的描述错误的是[ ]

A．硝酸铵溶于水放出大量的热

B．木炭在氧气中燃烧发出白光

C．铁丝在氧气中燃烧生成黑色固体

D．红磷在空气中燃烧产生大量白烟

Because our work is very busy, so we need to relax at midday.

A．We are very busy

B．Our work being busy.

C．Our work so very busy

D．Because our work so very busy,