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结合对 “微公益”活动的了解,谈谈参加志愿服务活动对个人成长的作用。 为什么说加强个人品德修养是人生的必修课?
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【单选题】The rate of heat transfer from a hot region to a cold region is affected most by the _____.
A.
size of the heat sink
B.
temperature difference between the regions
C.
size of the heat source
D.
total heat of the system
【多选题】关于CIE XYZ 和 CIE RGB 的区别,以下说法错误的是( )
A.
CIE RGB是以实验为基础的表示颜色的真实彩色系统
B.
CIE XYZ是非真实的颜色系统，主要用理论计算
C.
CIE RGB中光谱轨迹和轨迹以内的颜色色品坐标都为正
D.
CIE XYZ中色匹配函数会出现负值
【简答题】被等腰直角三角形斜边上的高分成的两个等腰直角三角形______．
【单选题】There is a great difference in climate from region to region in China because______.
A.
China is so large in size and complicated in landform
B.
it's very hot in summer and extremely cold in winter
C.
the northern part has no summer and southern no winter
D.
China lies in temperate zone under the influence of monsoon
【单选题】Thereis a great difference in climate from region to region in China because__________．
A.
China is so large in size and complicated in landform
B.
it’svery hot in summer and extremely cold in winter
C.
then or them part has no summer and south era no winter
D.
China lies in temperate zone under the influence of monsoon
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