【判断题】光的波长决定色彩的色相,光的振幅决定色彩的明暗。
【简答题】Part I Dictation Directions: Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to und...
【简答题】Part I Dictation Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the ...
【简答题】Part I Dictation Directions: Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to und...
【简答题】Model test two Part I Dictation Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to ...
【判断题】有彩色系(简称彩色系)是指红、橙、黄、绿、青、蓝、紫等颜色。不同明度和纯度的红橙黄绿青蓝紫色调都属于有彩色系。有彩色是由光的波长和振幅决定的,波长决定色相,振幅决定色调。
【简答题】PART I DICTATION Listen to the following passage. Altogether the passage will be read to you four times. During the first readings which will be done at normal speedy listen and try to understand the ...
【简答题】Model test four Part I Dictation Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to...
【判断题】光波现象又是一种色彩现象,属于一定波长范围内的一种电磁波。 波长区别色彩,它的长短会产生色相的变化,在可见光光谱中,波长的偏蓝,波长短的偏红;而振幅的高低决定明暗。