#We can answer Donne's question at levels that he himself could not even have imagined. Why do things absorb light? Why do green leaves absorb the particular light they do, and what do they do with it once they've got it? How come this light is available to them? Why does this ...
根据第一段第二句Although blood looks red when it’s outside the body, when it’s sitting in the vein near the surface of the skin, it’s more of a dark reddish purple color.很容易判断出皮肤表面的静脉是暗红色的。 2.D 细节理解题。根据第四段最后一句Or, more often, become more bent ...
we've been through that,但是你和我,我们是过来人and this is not our fate这不是我们的宿命So let us not talk falsely now,所有让我们别谬谈了the hour is getting late时间已然向晚All along the watchtower,沿着了望塔方向princes ...
Conjunctivitis is the most common cause of red eye. Other common causes include blepharitis, corneal abrasion, foreign body, subconjunctival hemorrhage, keratitis,
unusually bad smell is often a sign that you have bleeding in your esophagus, stomach, or the top part of your small intestine. The blood turns black and tarry when it's digested in your gastrointestinal tract. If you have bleeding lower in your digestive tract, your poop may look red. ...
Brown urine is one of the first and most common signs ofhepatitis, which is another name for liverinflammation. There's more than one type of this disease, includinghepatitis A, B, and C. When you have it, your liver can't clean your blood properly. This can lead to a buildup of ...
What color are blood worms? Haemoglobin contains iron, which means most worm blood – including that of earthworms and leeches – isred. Some segmented worms use a different oxygen-carrying molecule called chlorocruorin. The blood of these worms can be either green or red. ...
Dr Goldbach explained that one reason paper cuts hurt so much is where they occur: primarily on the finger. 海莉医生解释,纸张割伤会如此疼痛的一个主要原因是伤口在指尖上。 "We have nerve endings all over the body," ...
The red color of a totally eclipsed Moon has prompted many people in recent years to refer to total lunar eclipses asBlood Moons. Why Red? The reason why the Moon takes on a reddish color during totality is a phenomenon calledRayleigh scattering. It is the same mechanism responsible for cau...
Why is One of my Eyes red? Red eye in medicine, also known as bloodshot eyeâ€, often refer to the inflammation or swelling of thebloodvessels in the sclera, or white part of the eye. The causes of red eye†are plenty. It can be due to exc...