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4 questions
Siapakah yang menjumpai neutron?
Neils Bohr
J.J Thomson
James chadwick
Ernest Rutherdord
A
B
C
D
Antara yang berikut manakah bahan komposit.
Kaca soda kapur
Kaca borosilikat
Kaca plumbum
Kaca fotokromik
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