A:a3a2=a6
B:(a3)4= a7
C:a6 ÷ a3 = a2
D:a5 + a5 =2 a5
潜水艇在水面下深度为h的位置,该深度处受到水的压强3×105Pa,可取水的密度为1×103kg/m3,g取10N/Kg,此深度是 ____m.
- __________a new film in Star Cinema this weekend?
- Yes, there _____ often new films at the weekend.
成人平均体重大约是65千克,15名成人的体重大约是____千克。