Does Hair Turn Gray?湖北省武汉市张恒选译If you ’ve ever seen a picture of a grandparent when they are young and wondered what made their hair go from dark to light,join us as we find out why hair goes gray.如果你曾经看过爷爷奶奶年轻时的照片，想知道是什么让他们的头发颜色由深变浅，...
Why Does the Hair Turn Gray 如此推论 摘要:虾vip小学生优秀作文:中年级版
a我可以用一个三角型和一个长方形来画一颗树。 I may use a trigonometric form and a rectangle draw a tree.[translate] aGraphics are also used in animation. 图表也用于动画。[translate] aOne day a girl asked her teacher Mary, "Why does a man's hair become gray before his mustache and bea...
Here's a look at what causes hair to turn gray and some of the factors that affect graying. Read More Can Hair Turn White Overnight? By Anne Marie Helmenstine, Ph.D. The age at which you'll get your first gray hair (assuming your hair doesn't simply fall out) is largely determined...
根据最后一段中“Constant worry and stress can have many bad effects on the human body. It is a known fact that stressful times can cause one to suffer hair loss. It would make sense that if stress can cause these problems, perhaps it also may lead to graying.”(持续的担忧和压力会对...
Love ‘em or hate ‘em — gray hairs are a part of life. And discovering that first gray hair can be a downer. Losing the color in your hair can begin happening at a young age or when you're middle-aged, and it doesn't matter what hair type or hair color you have. But where ...
10.Does stress cause gray hair?Many people believe that tension and stress can cause your hair to lose its color.In fact,it is an old wives tale that being upset all the time can result in premature(过早的) graying.Here is a closer look at this situation and why some believe that this...
Does everybody's hair go grey? In time,everyone's hair turns gray. Your chance of going gray increases 10-20% every decade after 30 years. Initially, hair is white. It gets its natural color from a type of pigment called melanin. ...
根据第二段提到的As one ages,the hairs on the head also age和In fact,just about everything on the human body begins to show signs of wear and tear after a while可知,本段主要讲述人体的每一部分都会随着年龄的增长而衰老。故选A。 根据第三段提到的At first,__hairs will have a limited amoun...
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