小数点后保留二位
25.2051修约后的数字为( )。
A.25.24B.25.23C.25.21D.25.22E.25.20
参考答案:C
解析:[知识点] 有效数字
在体内可转化为半胱氨酸的必需氨基酸为()
A.异亮氨酸
B.酪氨酸
C.蛋氨酸
D.色氨酸
E.苯丙氨酸
An analyst does research about security market indices. The number of freely floating share available is component of which of the following index weighting schemes()
A. Fundamental weighting.
B. Price weighting.
C. Market-capitalization weighting.