初冬的早晨，树枝上往往挂满了霜花，这一现象发生的物态变化属于（   ）

某学校“你最喜爱的球类运动”调查中，随机调查了若干名学生（每个学生分别选了一项球类运动），并根据调查结果绘制了如图所示的扇形统计图．已知其中最喜欢羽毛球的人数比最喜欢乒乓球的人数少6人，则该校被调查的学生总人数为____名．

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.

下列划线词语注音全部正确的一组是（     ）

下列物质属于氧化物的是（　　）