Cov qhov rooj hluav taws tau muab faib ua peb qib, A, B, thiab C raws li lub sijhawm sib txawv hluav taws kub. Lub qhov rooj tua hluav taws hauv chav kawm A yog 1.5 teev, chav kawm B qhov rooj hluav taws yog 1 teev, thiab chav C hluav taws kub qhov rooj yog 0.5 teev.

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