下壁()
A. Ⅱ、Ⅲ、aVF导联
B. Ⅰ、aVL导联
C. V1、V2、V3导联
D. V3、V4、V5导联
E. V5、V6导联
Questions 22 to 25 are based on the conversation you have just heard.
A. It tops the U. S. annual box office.
B. Its main character is an advertising executive.
C. The main actor is Tom Cruise.
D. It is an old-fashioned silly comedy.
减张缝合手术()
A. 4~5d
B. 6~7d
C. 7~9d
D. 10~12d
E. 14d
Questions 33 to 35 are based on the passage you have just heard.
A. By its thick layer of fat under its skin.
By moving frequently in the water.
C. By adjusting its blood temperature.
D. By taking in hot air.