The prior treatment for migraines included medicine that
B
Phương pháp chữa trị tối ưu cho chứng đau nửa đầu bao gồm
A. loại bỏ cơn đau
B. thắt chặt mạch máu
C. loại bỏ cơn đau thoáng qua
D. loại bỏ căng thẳng
Dẫn chứng: Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause.
=>Chọn B
What can be inferred about the White House from the information in the second paragraph?
Research studies have shown that pressures put on students nowadays are ______.
According to the author, the fact that more full-time students are working for pay ______.
According to the passage, now that scientists know that unusual neurons in certain people are the cause of migraines, they
Why does the passage begin with a description of the properties of calcium nitrate?
The new research indicates that the neurons in the brain of migraine sufferers