【单选题】He has a strong objection () smoking in public areas.
【多选题】在下列钢号中()钢属于调质钢,主要应用于轴杆类零件。
【单选题】He has a strong______ sense. Even a small desk has some beautiful respects in his eyes.
【单选题】He has a strong______ of duty.
【单选题】He has a strong American accent.
【单选题】在介绍产品时应实事求是,着重宣传本企业产品与市场上同类产品的不同点和优越性,切忌故弄玄虚,_______。有时,有意把产品一些小的缺点_______给对方,更有利于得到顾客的信任和理解。填入文段横线处恰当的一项是:( )
【单选题】He has a strong of humor.
【简答题】35CrMo、30CrMnTi、40Mn2、42CrMo钢种属于哪类钢?执行什么标准?