I don't have a ping-pong ball, ______ my sister ______.
A:and; has
B:and; have
C:but; do
D:but; does
①实验室常用温度汁是利用液体的____ 性质制成的,小华某一时刻观察到温度计示数如图2所示,该温度值为____℃.
②该实验应选用____(“大冰块’或“碎冰块”)来进行实验,效果更好些;
③为了使试管中的冰受热均匀.且便于记录各时刻的温度值,小华应选用图1中的____(“甲”或“乙”)装置来进行实验.