The boy cannot take the encyclopaedia home because ()
A. it is too heavy
B. it is a reference book
C. it belongs to the woman
D. it is not available
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上大学的费用(tuition and fees)可以通过多种途径解决;2.哪种途径适合于我(说明理由)。
57()
A. music
B. song
C. melody
D. style
61()
A. forms
B. follows
C. approaches
D. introduces