根据食用天然色素的来源分,不属于植物色素的是()。
A.类胡萝卜素
B.胡萝卜素
C.叶绿素
D.花青素
参考答案:A
These photographs will show you _____________.
A.what does our village look like
B.what our village looks like
C.how does our village look like
D.how our village looks like
平均偏差比标准偏差能更加灵敏度程度的大小。