答:到达乙地时是10时24分.
—First I did my homework, and then I played piano for half hour.
有关澳大利亚的说法,错误的是( )
Greg wanted to climb a mountain, but he ended up ____ (help) thousands of people to have a better life.
20世纪,由于人类大量使用DDT,使DDT大量进入海洋,并积累在很多生物体内,你认为下列生物中,体内DDT含量最高的是( )