20.一个长方体的棱长总和是72厘米,它的长、宽、高的和是( )厘米.
0 157870 157878 157884 157888 157894 157896 157900 157906 157908 157914 157920 157924 157926 157930 157936 157938 157944 157948 157950 157954 157956 157960 157962 157964 157965 157966 157968 157969 157970 157972 157974 157978 157980 157984 157986 157990 157996 157998 158004 158008 158010 158014 158020 158026 158028 158034 158038 158040 158046 158050 158056 158064 199269
A. | 24 | B. | 18 | C. | 36 |