【正确答案】正确答案：CAL is short for Computer-assistant Learning. It emphasizes the use of a computer in both teaching and learning in order to help the learners to achieve educational objectives through their own reasoning and practice, a reflection of newly advocated autonomous learning. The first kind of CAL programs which were developed reflected principles similar to programmed instruction the computer leads the student through learning task step-by-step, asking questions to check comprehension. Depending on the student's response, the computer gives the student further practice or progresses to new material.