与 互为相反数的是( ).
A:
B:
C:
D:
A:____that?
B: It's a radio.
A:____often listen to the radio?
B:____, I do.
A:____do you often listen to?
B: I often listen to music.
A:____do you often listen to the music?
B: In the park or at home.
计算:0×(﹣2)﹣7=____ .
—Amanda, you look tired today. What's wrong?—I worked______ late ______ I didn't go to bed until midnight yesterday.
暑假就要来了,小明为自己制定了慢跑锻炼计划,某日小明从家出发沿解放路慢跑,已知他离家的距离s(千米)与时间t(分钟)之间的关系如图所示,请根据图象直接回答下列问题: