29. Millet's *The Cleaners*, exhibited in the Salon of 1857, presents __________ who are fated to bend their backs to gather with clubbed fingers the wisps of overlooked grains. (A) the crop field after harvest (B) the high horizon line in the distance (C) the very poorest of the peasants (D) the painter himself

39. Children gain knowledge about the world around them in part from observation and experience. To understand the world, a child needs firsthand experience with many opportunities to observe, to experiment, and to get hands dirty. While experience counts for much, book learning is also important, for it helps bring coherence and order to a child's scientific knowledge. Only when topics are presented systematically and clearly can children make steady and secure progress in their scientific learning. A systematic approach that combines experience with book learning can help provide essential building blocks for deeper understanding at a later time. _________ (A) It can also provide the kind of knowledge that one is not likely to gain from observation. (B) The child's development of scientific knowledge and understanding is a very disorderly and complex process. (C) From their very first day in school, students should be actively engaged in learning to view the world scientifically. (D) However, experience is generally considered much less important than book learning by educators.

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