C. b. syair
17. Bagian terkecil dari sebuah lagu disebut
a. nada
musik
d. melodi
18. Lagu yang berirama dengan kecepatan
perlahan artinya lagu tersebut bertempo.
a. lambat
c. cepat
b. sedang
d. kilat
19. Ukuran kecepatan dalam birama lagu dişe

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The answer is joseph is observing the colour of the reaction mixture to see whether proteins are present in the given solution.

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