表示南纬的符号是( )
A:E
B:W
C:N
D:S
在做“探究水沸腾时温度变化的特点”的实验中:
小明家电能表上个月底表盘数字是,这个月底表盘数字如图所示,可知他家本月用电____ 度,他只让某电水壶工作,发现在10分钟内该电能表转盘转过了600转,则该电水壶的实际功率为____ W.
Do you see the sea? The sea is blue,and it is very large(大的).The sea looks beautiful in a sunny day. If(如果)you swim,in the sea,you know that the water is salty(咸的).Do you like the sea?
在蜂蜜、牛奶、水、油四种液体中,流动速度最慢的是( )