轉去搜尋:Google
Maths : a book you can count on!
Punctuation : the write stuff!
Grammar : write here, write now!
Astronomy : out of this world!
Physics : why matter matters!
Algebra & Geometry : anything but square!
Music : hit the right note!
Chemistry : getting a big reaction!
Human Body : a book with guts!
Planet earth : what planet are you on ?
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