第22题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. She can use his gun. B. She can borrow someone else’s gun. C. She should have a gun of herself. D. She can’t borrow his gun. 参考答案:D 答案解析:[听力原文]
W:I feel like going hunting this weekend,but I don’t have a gun.
M:But you {{U}}can rent on
第23题: [单项选择]未参与维持血液pH平衡的是 A. 血液的缓冲系统调节 B. 肺对CO2排出的调节 C. 肾脏对酸碱物质排出的调节 D. 神经系统的调节 E. 每日饮水量、尿和排汗量的调节 参考答案:E