献血者检查标准不正确的是()。 ["脉搏节律规整,60~100次/分","心律60~100次/分","ALT<25U(速率法)","Hb≥120g/L(男)","Hb≥110g/L(女)"]
委托代理关系的委托方是() ["居于信息优势方","居于信息劣势方","双方处在信息对称状态"]
垂直运输机械设备包括:()、()和()。
数码摄影每张图片的横竖像素比为多少?() ["4:3","3:4","5:4","4:5"]
流动采血时的冷藏箱的温度一般应控制在()。 ["4~6℃","4~8℃","4~10℃","2~8℃","2~10℃"]
简述荔枝新梢种类及其特征。