A:put out; going them out
B:be out; put them out
C:go out; to put them out
D:go out; putting them out
如图所示,刚从酒精中拿出来的温度计示数会变小,这是因为温度计玻璃泡上的酒精( )
古时候人们使用的水钟一般可分为____和____两种类型。