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【单选题】
如下关于灰体辐射能力的说法，错误的是（）A.
正比于热力学温度的四次方
B.
恒小于同温度下黑体的辐射能力
C.
只要温度相同，所有灰体的辐射能力就相同
D.
灰体的辐射能力与其表面状况有很大的关系
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【简答题】The ability to forgive others is a great thing that can certainly help to make life happier for everyone. However, some people think that it is very 1 to do, and they don’t know how to forgive others,...
【单选题】增长率是时间序列中( )
A.
报告期观察值与基期观察值之比减1
B.
报告期观察值与基期观察值之比加1
C.
报告期观察值与基期观察值之比
D.
基期观察值与报告期观察值之比
【多选题】激冷等轴晶型壁脱落与游离理论包括( )。
A.
浇注过程中激冷晶自型壁脱落与游离
B.
凝固初期激冷晶自型壁脱落与游离
C.
激冷晶从型壁上脱落与游离
D.
型壁脱落晶体游离生长变化
【简答题】A: You look sad, Katie. 75___ ?此题出自2015年湖北鄂州中考英语真题及答案,，2015年湖北鄂州中考英语试题及答案 阅读对话，根据横线后所给标点符号的提示，在横线上填写适 当的句子，使对话完整。 A: You look sad, Katie. 75___ ? B: Well, I found Holly using my crayons yesterday. She...
【简答题】One day Jack went to a big dinner party. His coat was not good. When he went in, no one looked at him and no one gave him food. He was angry that he went home, and his best coat and then came back to ...
【单选题】—Li Lin, you shouldn’t shout at your parents. It will make them very angry. —I’m sorry ______ what I ______. [ ]
A.
for; to say
B.
for; did
C.
about; say
D.
that; did
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