A、Point-by-point pattern.
B、Point-by-subject pattern.
C、Subject-by-subject pattern.
D、Subject-by-point pattern.
喵查答案:Subject-by-subject pattern.
A、Point-by-point pattern.
B、Point-by-subject pattern.
C、Subject-by-subject pattern.
D、Subject-by-point pattern.
喵查答案:Subject-by-subject pattern.