大数据的“四个V”特征是指哪4V？ A: Volume-体量 B: Variety-多样性 C: Value-价值 D: Velocity-速度

Average velocity is defined by the equation v=s/t,____ v is the average velocity, s is the distance traveled, and t is the elapsed time.

根据IBM的定义，大数据的4V特征是（）。 A: Volume、Velocity、Variety、Veracity B: Valid、Velocity、Variety、Veracity C: Volume、Valid、Variety、Veracity D: Volume、Velocity、Variety、Valid

A body       velocity is not constant is said to be accelerated.

Km is defined as A: Substrate concentration at maximum velocity B: Substrate concentration at half the maximum velocity C: Enzyme concentration D: Optimum temperature

The venturi tube can be used to measure ( ) A: Point velocity B: Point pressure C: Average velocity across section D: Flow rate

Particles whose velocity is _____ critical settling velocity can be totally removed in ideal settling tank. A: more than B: less than C: no demanding

The 3Vs include Volume, Variety, Velocity and veracity.

_______ this case the velocity of an object varies linearly （线性地） ________ the time.

Mechanicalenergyintransitionisreferredtoas（）. A: horsepower B: work C: heat D: velocity