题目内容
Difference in the size of the two hemispheres exists in a monkey's brain.
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The two sides of a human brain are the same before birth.
听力原文： Ladies and gentlemen, I am glad that we are together to understand the power of yoga. Nowadays, movie stars do it; sports stars do it; even judges in the highest courts do it: that yoga thing. A path to entertainment that winds back 5,000 years in its native India, yoga has suddenly become so hot, so cool, so very this minute.
In America, people rush from their high pressure jobs and tune in the authoritatively mellow voice of an instructor, gently urging them to solder a union between mind and body. 15 million Americans, include some form. of yoga in their fitness regimen, 75% of all US health clubs offer yoga classes.
Yoga relaxes you, and by relaxing, heals. When you do yoga -- the deep breathing, the stretching, the movement that release muscle tension, the relaxed focus on being present in your body -- you initiate a process that turns the fight, or fight system off and relaxation reponse on, that has a dramatic effect on the body.
Who are not mentioned in the passage those doing yoga nowadays？
Three years ago, North Korea opened disarmament talks with the other 5 countries to ease tension. Last September, they released a joint statement.
听力原文： Today we are going to talk about a species of fish that is rather unique: Today's lecture is about sea horses, if you've seen a sea horse, you may have noted that it has a horse-like head attached to its body. The sea horse has a long snout that is good for sucking. Instead of scales like most fish, sea horses have skin that is stretched over bony plates. The body extends to a prehensile tail, meaning that the tail can be used to grasp. The sea horse may grasp sea grass or coral to keep it stable in a moving current.
The sea horse has fins on its back that it can use to propel it through the water. However, sea horses aren't very good swimmers. They do not move quickly over great distances. The sea horse also has chest fins that it uses for stabilization. The chest fins help the sea horse float in an upright position.
One particularly unique feature of sea horse is that only the male becomes pregnant. The female inserts ripe eggs into the male' pouch, where they are fertilized. The eggs become embedded in the pouch wall.
What is this lecture mainly about？
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