1.若集合A={x|0≤x≤10),B-{x|x11+10≥0},则ABA.[0,1]B.{10}C.0≤x≤1或x=10}D.[1,10]2.已知i是虚数单位,若,=i,则|z|=石2-21A.4B.22Z=2+2C.2D.23.若a=2020,h=0.120,c=0.1,则