【单选题】在四杆机构中,已知三杆长度为 a=80 , b=150 , c=120 ,则 d 杆长度为( )时机构为双曲柄机构。
【判断题】供应链融资模式下的抵押方和贷款方不是同一方
【单选题】In most cases, college graduates don't mind what job they will do so long as it is one ______ they can earn money to support themselves.
【单选题】m ou th fl ow er h ow ou tside