A:1.21
B:−83
C:−332
D:227
请以“叛逆的青春”为话题写一篇短文,应注意最终的价值取向应积极、健康、向上,要抒写出自己的真情实感,或写出的事件应真实可信。300字左右。
读“某国人种构成图”,判断该国最可能是( )
— Lily, look, a crowd of birds are flying to our small yard.
— Just now, I threw some bread in the yard. They have come here for the food.
白炽灯的灯丝断了之后, 如果再搭接上会更亮, 为什么?