【简答题】热锻模应选用( ) (A)Cr12MoV淬火和低温回火 (B)5CrNiMo调质处理 (C)40Cr调质处理
【单选题】Our ______ sensitivity decreases with age. By age 60, most people have lost 40 percent of their ability to smell and 50 percent of their taste buds.
【简答题】Chinese Kung fu is a blend of ____________
【单选题】It was Jackie Chan ____ made me interested in Chinese kung fu.