【判断题】好好写作业,上课积极回答问题就会不挂科。
【判断题】焦距越大,监看距离越远,水平视角越小,监视范围越窄。
【简答题】翻译 They carry a cold bottle of water , and try to get to the swimming pool as often aspossible. There is noting like a dip in the pool to escape the heat. Some roads were closed and many trucks were s...
【单选题】CCD尺寸是指CCD图像传感器感光面(靶面)的()尺寸,物宽和CCD靶面宽不变时,焦距越大,则监看距离(),水平视角(),监视范围()。
【单选题】______did he give you much advice?
【单选题】根据《芝加哥公约》规定,航空器的国籍为( )。
【判断题】镜头焦距越大,监看距离越远,水平视角越小,监视范围越窄;镜头焦距越小,监看距离越近,水平视角越大,监视范围越宽。( )