【单选题】Although it’s at ____ dusk, the children don’t get tired of playing ____ football outside.
【简答题】float a,b,c , 问表达式 (a+b)+c==(b+a)+c 能否成立?————(填成立或不成立)
【单选题】Children are tired of learning often because they are __________ to do better than they can, both at school and at home.
【简答题】我国目前采用的彩色电视机制式PAL制为( )。 A.25帧/S B.30帧/S C.45帧/S D.50帧/S
【单选题】The children ________ tired.
【单选题】供应链管理的目标是在总成本最小化、客户服务最优化、( )、总周期时间最短化以及物流质量最优化等目标之间寻找最佳平衡点。
【简答题】Children are tired of learning often because they are ________ to do more than they can. [A] expected [B] suggested [C] hoped [D] wished