econ102: 是susan的那本exploring macroeconomic 白蓝色的,35 9 U" K" W; _/ Ewrs101: 60! j2 [9 S: C) H- \8 `! L
chem101/102: 有solution manual,60+ P% \& i1 b) n& N
engl123: The longman anthology world literature 还有一本 the least you should know about english 只知道jean richardson这老师用这两本,其他的section也有可能,每本509 w$ X9 Z5 a" g; Z
arec323: 40" R* L, |7 ^- i2 a& {1 Z2 p
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