Mr. Brown: Good morning. My name is Edward Brown. I'm your new ____, and I moved in yesterday.

Mrs. Smith: Good morning, Mr. Brown. May I help you?

Mr. Brown: I'm trying to do some work now. But I'm afraid your children are making too much ____.

Mrs. Smith: Oh, I'm sorry, Mr. Brown. But you know it's____ to keep little boys quiet.

Mr. Brown: But I can't stand it any more. I couldn't work and I couldn't ____ at all last night.

Mrs. Smith: I'm very, very sorry. I'll do my best to keep them quiet. But I'm not sure it'll work.

Mr. Brown: Well, it seems I have to put up with it now.

Mrs. Smith: Don't ____. My husband will come back from business tonight. And the boys always listen to him.

留守儿童是指父母离乡外出打工，未成年子女留守在家乡原籍，日常生活学习主要由年迈的祖父母或外祖父母监护的少年儿童。留守儿童属于弱势群体，他们的各项权利亟待有效保障。2016年2月国务院印发《关于加强农村留守儿童关爱保护工作的意见》，提出加强农村留守儿童关爱保护工作。维护未成年人合法权益是各级政府的重要职责，也是家庭、学校和全社会的共同责任。

到2011年5月8日止，某铁路共运送旅客265．3万人次，用科学记数法表示265．3万正确的是(    )

将5张画着圆、平行四边形、等边三角形、等腰梯形和菱形的卡片在任意摆放（卡片质地、大小完全一样），把有图形的一面朝下，从中任意翻开一张，如果翻开的图形既是轴对称图形，又是中心对称图形的概率是​ ____