问题 单项选择题 将数字0.350,0.4500,1.050分别取舍到只保留一位小数,结果为( )。A.0.4,0.4,1.0B.0.4,0.5,1.1C.0.3,0.4,1.0D.0.4,0.4,1.1 答案 参考答案:A