____÷____=80
____×____=1000
如图,将一根长24cm的筷子,置于底面直径为5cm,高为12cm的圆柱形茶杯中,设筷子露在杯子外面的长为acm(茶杯装满水),则a的取值范围是____
—Yes. At moment he is listening to music.
下列关于生物遗传物质的叙述中,不正确的是( )