阅读下列短文，根据短文内容填写表格。(每空限填一词)     

    Hi! Do you know the three children? They are in a happy family. Xiao Xue is a helpful girl. She is beautiful. She likes studying. She studies very hard. She gets up early and finishes her breakfast quickly .Then she rides her bike to school . Liu Xing is a little lazy. He gets up late and then washes his face, brushes his teeth in a hurry. Then he goes to the bus stop without breakfast. He usually plays basketball after school. In the evening, he seldom (很少)does homework. He goes to bed late. Xiao Yu is a lovely boy. He gets up very slowly and then he usually takes a shower(淋浴)at home before breakfast. After that, he goes to school in his father’s car. He likes watching TV in the evening.

已知X、M都是中学教材常见元素，下列对两个离子反应通式的推断中，其中正确的是（　　）

（甲） XO₃^n﹣+X^n﹣+H⁺→X单质+H₂O（未配平）；  （乙）M^m++mOH^﹣=M（OH）_m↓

①若n=1，则XO₃^n﹣中X元素为+5价，X位于周期表第ⅤA族

②若n=2，则X最高价氧化物的水化物可能与它的氢化物反应

③若m=1，则M（NO₃）_m溶液和氨水互滴时的现象可能不同

④若m=2，则在空气中蒸干、灼烧MSO₄溶液一定能得到MSO₄

⑤若m=3，则MCl₃与足量氢氧化钠溶液反应一定生成M（OH）_m．

①命题“若x²＜1，则﹣1＜x＜1”的逆否命题是“若x＞1，x＜﹣1，则x²＞1”

②已知P：“∀x∈R，sinx≤1，q：若a＜b，则am²＜bm²，则p且q为真命题

③命题“∃x∈R，x²﹣x＞0”的否定是“∀x∈R，x²﹣x≤0”

④“x＞2”是“x²＞4”的必要不充分条件．