下述动物中，身体分节并且分部的是[ ]
A．蛔虫
B．水螅
C．蜜蜂
D．蚯蚓
答案：C
水的密度是_______kg/m3,表示的物理意义是_____________________．
The head teacher with his students _______Teanchengshan Park if it _______tomorrow.
A．is going to; isn’t rainy
B．are going to; isn’t rainy
C．is going to; won’t rain
D．are going to; doesn’t rain
