My friend helped me unpack at the hotel and then went back to work.
参考答案:对
一个工程,甲和乙单独做分别需要24天和32天,如果甲先做若干天后休息,乙接着做,这样共用27天完成,问甲、乙各做了多少天( )
A.7,20
B.13,14
C.15,12
D.11,16
观看图像Alpha通道应该在()?