【单选题】杆AF、BE、CD、EF相互铰接、并支承如图所示。今在AF杆上作用一力偶(【图片】、【图片】),若不计各杆自重,则A支座处反力的作用线﹍﹍﹍﹍﹍﹍﹍【图片】
【判断题】宴会的形式种类通常按时间分为午宴、晚宴、夜宴等。
【单选题】杆AF、BE、EF、CD相互铰接并支承如图4—23所示。今在AF杆上作用一力偶(P,P′),若不计各杆自重,则A处约束力的方向为( )。
【简答题】It is in view of our long-standing business relationship that we make you such a counter-offer.
【判断题】宴会的形式种类通常按时间分为午宴、晚宴、夜宴等。
【单选题】It is only in view of our long friendly business relations that we ____ you this accommodation.
【单选题】杆AF、BE、EF相互铰接,并支承如图所示。今在AF杆上作用一力偶(P,P′),若不计各杆自重,则A支座反力作用线的方向应:
【单选题】杆AF、BE、EF相互铰接并支承,如图所示。今在AF杆上作用一力偶(P、P'),若不计各杆自重,则A支座反力的作用线应:
【简答题】As we said previously, it is only in view of our long friendly relations that we extend you this accommodation.(英译中)