What does the pulse measure?把这个问题的答案用英语回答出来.快

What does the pulse measure?把这个问题的答案用英语回答出来.快 envelope of the pulse pulse the peripheral pulse wave RT. what does the sign What does the man do? what does the man mean what does the man want what does the woman want? What does the teacher say? What does the boy ----- doing? What does the boy do “What does the writer do? what does the teacher like What does the fox say? what does the sign mean. What. does. the. shop. sell? What does the store sell?