单项选择题


Questions 26 to 28 are based on the passage you have just heard.

A．It keeps blood vessels from being blocked.
B．It speeds up their recovery after surgery.
C．It increases the blood flow to the heart.
D．It adjusts their blood pressure.
<上一题 目录 下一题>
热门 试题

单项选择题
A．They grow up to be funny and charming.B．They often have a poor sense of direction.C．They get less attention from their parents.D．They tend to be smart and strong-willed.
A．They grow up to be funny and charming.
B．They often have a poor sense of direction.
C．They get less attention from their parents.
D．They tend to be smart and strong-willed.
填空题
C
相关试题