计算:x4÷x2=______.
x4÷x2=x4-2=x2.
汽车速度是36km/h,短跑运动员的速度是10m/s,自行车每分钟通过0.6km的路程,它们中速度最大的是[ ]
A.自行车的
B.短跑运动员
C.汽车
D.三者速度一样大
Most Navigation System equipment is()from the bridge, a unique location that allows for a centralized,safe and efficient management of ship navigation.
A.accessible
B.restricted
C.deterred
D.far away