it can make them ___.A.vibrateB.breathe the airC.talk to each otherD.move forward and backward小题4:Sounds are different because ___.A.different sounds have different vibrationsB.different sounds have different sound wavesC.different sounds have different vocal cordsD.both A and B 相关知识...
In (5)s___, there are names for different sound waves. When the sound vibration is (6)s___, we call this a low-pitch (音调) sound. But when the sound vibration is fast, we call this a high-pitch sound. Pitch (7)d___how high or low a sound is. When the sound has less ...
⑥As for our ears, when we hear, the force of sound waves (声波的力度) into differen ears is different. Our brain feels the difference and works on It. This helps us know where sound is coming from.根据材料内容选择最佳答案,31.When we breathe, how often does the congested nostril ...
This happens because the sound waves have vibration.In science there are names for different sound waves. When the sound vibration(振动)is slow,we call this a low-pitch(低音) sound. But when the sound vibration is fast, we call this a high-pitchsound. Pitch describes how high or low a...
Everything that humans hear is in theform of waves(波).Just as the eyes seelight waves in the form of colors,the earshear sound waves in the form of noises.The ears and the eyes turn these differentwaves into signals that the brain(大脑)can make sense of.The ears and brain have an ...
Everything that humans hear is in the form of waves (波).Just as the eye sees light waves in the form of colors the ear hears sound waves in the form of noises. The ear and the eye turn these different waves into signals that the brain (大脑) can make sense of. The ears and bra...
根据Everything that humans hear is in the form of waves.Just as the eye sees light waves in the form of colors,the ear hears sound waves in the form of noises.The ear and the eye turn these different waves into signals that the brain can make sense of.人类所听到的一切都是以波的形式...
{{B}}Passage Three{{/B}}Why do most of us hear women voices more clearly A.Because their voices are more pleasant to listen to.B.Because the possessing of voices in the brain is different.C.Because listening to women requires more brain activities.D.Because women’s voices are full of...
Everything that humans hear is in the form of waves(波). Just as the eye sees light waves in the form of colors, the ear hears sound waves in the form of noises. The ear and the eye turn these different waves into signals that the brain can make sense of
Everything that humans hear is in the form of waves (波).Just as the eye sees light waves in the form of colors, the ear hears sound waves in the form of noises. The ear and the eye turn these different waves into signals that the brain (大脑) can make sense of. ...