异性同学之间没有真正的友谊
Thehouseconsisted_____threebedrooms,akitchen,andabathroom.
一质点沿x轴运动，任意t时刻质点的速度为v=6+4t2(SI)，则在t=3s时质点加速度a=()
InAugust1977,asatellitetogatherdataaboutthe10millionblackholeswhicharethoughttobeintheMilkyWay.
Shehasnohostilitytous,_____canbejudgedfromhereyes
