我市约有495万人口,用科学记数法表示为______人.
495万=4 950 000=4.95×106人.
故填4.95×106.
With time changing so fast, to keep _____ with time, anyone should be a lifelong learner, or he will fall behind within years.
A.pace
B.stage
C.fare
D.Attitude
公安机关在刑事诉讼中有权()。
A、正确人犯拘留
B、批准逮捕
C、提起公诉
D、审判