如果2（x+3）的值与3（1﹣x）的值互为相反数，那么x等于　​ ____

根据中文或首字母写出单词，使句子完整准确。
What he said was already____ (记录) by the police.
Congratulations! You've answered all the questions____ (正确地).
Mr Wu received a present from his friend, but he didn't a____ it..
The camera was one of the greatest ____ (发明)in the world.
You have to be p____ enough to wait for your turn.
Now people eat____ (health) than before and many of them pay much attention to doing sports after work.
The boy____ (take) to hospital at once after he fell off the tree.
we must do what we can____ (save) the girl. She is too young.
We hope that more charity shows____ (hold) to raise money for Project Hope.
The boy considered ____ (he) as the smartest boy in his class.

马的性别决定方式与人基本相同，其卵细胞中性染色体的组成是（    ）

对任意实数x，若不等式|x+1|﹣|x﹣2|＞k在R上恒成立，则k的取值范围是（　　）