呼吸性碱中毒的病因包括
A. 呼吸中枢兴奋
B. 心功能异常
C. 肺功能异常
D. 肾功能异常
Before foreign teachers arrive in China, they frequently ask the same question.
A. 对
B. 错
Chinese officials assign people to aid foreign teachers when they are in China.
A. 对
B. 错
When professor Wang was in China, she had her in-group to help her.
A. 对
B. 错