柿子和西红柿不能空腹食用的原因都是因为会生成不易溶解的块状物。正确
A. 对
B. 错
枣、山楂、哈密瓜,由于钾含量高的原因,适合高血压患者。错误
A. 对
B. 错
Do you think I could see him ______ this morning?
A. sometime
B. some times
C. sometimes
I'd like to ____ the appointment with Dr. Johnson from Tuesday to Thursday.
A. chance
B. change
C. chat