As ordinary people, scientists are by no means more honest or ______ than other people, but as scientist, they attach special value to honest while they are in their working sphere.

A．ethical

B．ethnic

C．aesthetic

D．esthetic

以下（）为具有爆炸危险的建构筑物的防火防爆设计的基本要求。

A.建筑物耐火等级不低于二级

B.门窗向外开

C.封闭式建筑应采取泄压措施

D.地面面层应采用撞击时不产生火花的材料