A:89.6mL
B:112mL
C:168mL
D:224mL
﹣7,0.32, 13 ,46,0, 8 , 12 , 2163 ,﹣ 22 .
② 有理数集合:{____}
②无理数集合:{____}
③正实数集合:{____}
④实数集合:{____}.