A:Ann is looking at the flowers.
B:Ann is counting the flowers.
C:Ann is watering the flowers.
____+9=____
7+____=____
____-9=____
16-____=____
将温度计放入一杯酒精中,当温度计的示数不再变化时,将温度计取出,若当时气温为26 ℃,关于他观察到的温度计示数,下列说法中正确的是 ( )