1、2 7 2 7 1 pq7t5pq 7xy20x2y14xy5xy8 2b9b3b 2y4d3y4d3a4c17a16c15a13c 7ab19ab12abab9a2b5b2c14a2b4b2c 6y5y22y7y23xyyx 17z23mn7z225 mn2m3mn 2mn2x2y19mn24mn4 5f8f4f 2z4d4z9d3m2d20m19d16m17d 8pq8pq11pqpq27x2y6b2c28x2y5b2c 9n7n28n14n255 7 7 5 xnnx 5t22pq2t264 6 4 6 3 pq4x8pq 4xy10x2y9xy2xy2 7b8b8b 10t7c7t6c
2、7a4n19a17n18a13n 6pq4pq20pqpq7x2y8b2c11x2y5b2c 7t7t22t14t211 7 7 5 xttx 11y25pq2y242 8 2 8 mn6t9mn 9pq7x2y11pq24pq9b3b8b 8z5c3z2c6a5d19a9d11a17d 7pq10pq16pqpq12a2b8b2c18a2b4b2c 7m3m28m6m236 6 7 5 xttx 9m24mn2m255 7 5 7 ab6x2ab 4ab20x2y6ab21ab2e8e9e 8n8e6n10e5b2d15b16d18b10d 9ab6ab18abab24a2b5b2c25a2
3、b5b2c 6t5t25t19t223 7 7 5 mnnm 15t26ab2t264 8 4 8 mn8z6mn 8pq19a2b15pq19pq5a2a8a 7t5e3t10e3b8c18b20c19b10c 8xy10xy13xyxy9a2b4y2z12a2b5y2z 2z7z29z13z28zyyz 2n26pq5n227 xy5y2xy 7ab3x2y17ab15ab6 9a8a8a 6x8f8x9f9m8n5m4n20m20n 4ab15ab15abab18x2y7y2z22x2y3y2z 2y6y28y7y29xnnx 15z27pq6z233 8 3 8 mn7m3mn 3xy20a2b2xy25xy9b7b2b 7m7b3m10b3b6n5b7n19b14n 7mn5mn15mnmn29a2b8b2c16a2b6b2c 3y4y27y5y23myym 3m27mn7m27xy9y2xy 8xy11a2b15xy12xy5e9e7e 10m8a8m10a8a7d2a6d15a10d 6pq10pq11pqpq10x2y7b2c29x2y5b2c 8x9x25x20x224 1 7 5 xttx 18y29ab6y215 6 5 6 ab2x8ab 2xy9a2b3xy29xy