Your blood is red, so why are your veins blue?Fernando MarinhoDavid Anderson
(1)题详解: D 细节理解题 根据第二段Although blood looks red when it’s outside the body, when it’s sitting in a vein near the surface of the skin, it’s more of a dark reddish purple colour.可知在皮肤表层的血管中血液的颜色是dark reddish purple,故选D。 (2)题详解: D 细节理解题 ...
Below is a selection from a popular science book.If blood is red,why are veins (静脉) blue?Actually,veins are not blue at all.They are more of a clear,yellowish color.Although blood looks red when it’s outside the body,when it’s sitting in a vein near the surface of the skin,it...
Below is a selection from a popular science book. If blood is red,why are veins(静脉) blue? Actually,veins are not blue at all. They are more of a clear,yellowish colour. Although blood looks red when it's outside the body,when it's sitting in a vein near the surface of the skin...
If blood is red, why are veins(静脉)blue? Actually, veins are not blue at all. They are more of a clear, yellowish colour. Although blood looks red when it’s outside the body, when it’s sitting in a vein near the surface of the skin, it’s more of a dark reddish purple colo...
Make sure you're drinking enough water every day to stay hydrated. This helps maintain normal blood volume and reduces the prominence of veins. Also, aim for a balanced diet rich in nutrients like vitamin C, which supports vein health and elasticity. Regular exercise is also crucial for ...
Sometimes blood can lookblue through our skin. Maybe you've heard that blood is blue in our veins because when headed back to the lungs, it lacks oxygen. But this is wrong;human bloodis never blue. The bluish color of veins is only an optical illusion. Blue light does not penetrate as...
Darkened veins along with the breasts due to the increased blood supply to your breasts A yellowish, thick discharge from the breasts (this is known as colostrum).3. Breast-feedingIt is not uncommon for nipples to feel sore and tender after breastfeeding; especially in the first few minutes...
and drink plenty of water.Wear a short-sleeved shirt or other clothing that provides easy access to your arm. Also, have a glass of plain water. This keeps more fluid in your veins (dehydration can make blood tests harder). Both these tips make it easier for the doctor to draw blood....
That’s why it’s so hard to reckon with the facts: because the loss of her is so terrible, and so inhumanly unfair, and because if she could have outlived herself, she would find the whole thing – the rituals of grief, the sobriety of her own memorialisation, all the earnest ...