Another characteristic of a good distance learning program is the equivalence of the distance learning course with the same subject materials as those students taking the course on the home campus.
一个好的远程教育课程的另一个特点是,远程教育课程使用的学科教材,与那些在学校学习课程的学生使用的,是一样的。
Canon's E-TTL II even measures the distance to the main subject and that also becomes part of the evaluation taking place.
佳能的E - TTL II甚至可以测出相机和主要被摄对象间的距离并将此作为测光的考虑因素之一。
One can try focusing on point light sources at a similar distance to the subject of interest.
你可以尝试对焦在与中心物体距离相近的任何一个光源上。
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