问题
单项选择题
细胞外液的阳离子主要为（）
A、钠离子
B、钾离子
C、钙离子
D、镁离子
E、锌离子
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
细胞外液的阳离子主要为（）
A、钠离子
B、钾离子
C、钙离子
D、镁离子
E、锌离子
参考答案：A
| 选词填空。 | |
My 1._____ is Zhang Ming. I am a student at Willow School. My favourite 2.____ is Monday. I often get up at 6:30 in the morning. I have 3._______ and bread for breakfast. Then I go to school at 7:10. I do morning exercises at 7: 40. I eat lunch at 11:45 at school. After school, I 4.______ with my friends. In the evening, I eat 5.______ at 7:00. Then I do my homework. 6.______ I watch TV. I go to bed at 9:00. This is my day. What about yours? Zhang Ming |