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40－Waves
lijiao 540
39－What Every Writer Wants
lijiao 204
39－What Every Writer Wants
lijiao 379
38－Water and the Traveller
lijiao 325
38－Water and the Traveller
lijiao 298
37－The Process of Ageing
lijiao 257
37－The Process of Ageing
lijiao 314
36－The Cost of Government
lijiao 348
36－The Cost of Government
lijiao 371
35－Space Odyssey
lijiao 443
35－Space Odyssey
lijiao 320
34－Adolescence
lijiao 292
34－Adolescence
lijiao 491
33－Education
lijiao 295
33－Education
lijiao 237
32－Galileo Reborn
lijiao 279
32－Galileo Reborn
lijiao 239
31－The Sculptor Speaks
lijiao 320
31－The Sculptor Speaks
lijiao 259
30－Exploring the Sea-Floor
lijiao 374