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> 小明用照相机给小丽照了一张全身的2寸像后，小丽又要照一张2寸的半身像，此时小明应将 A.相机与人的距离加大，相机的暗箱长度缩短 B.相机与人的距离加大，相机的暗箱长度增长 C.相机与人的距离缩小，相机的暗箱长度缩短 D.相机与人的距离缩小，相机的暗箱长度增长

问题：

发布时间：2024-09-12

小明用照相机给小丽照了一张全身的2寸像后，小丽又要照一张2寸的半身像，此时小明应将

A.相机与人的距离加大，相机的暗箱长度缩短
B.相机与人的距离加大，相机的暗箱长度增长
C.相机与人的距离缩小，相机的暗箱长度缩短
D.相机与人的距离缩小，相机的暗箱长度增长

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