单项选择题有两个投资方案:甲方案的标准离差为4.86%,乙方案的标准离差为2.31%,可以断定乙方案的风险一定比甲方案的风险小。( )A.正确B.错误
单项选择题The seven dwarfs in 'Snow White' are______seventy centimeters tall.A.almost more thanB.hardly more thanC.nearly more thanD.as much as