问题
单项选择题
心肌自律性最高的部位是
A．窦房结
B．心房肌
C．房室交界
D．浦肯野纤维
E．心室肌
答案
参考答案：A
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心肌自律性最高的部位是
A．窦房结
B．心房肌
C．房室交界
D．浦肯野纤维
E．心室肌
参考答案：A
| 阅读理解。 |
| Mrs.Brown is English. She is from Manchester. Manchester is a city in the north of England. Now she works in London. She teaches English in a middle school and her students are between 12 and 16 years old. She can speak English and French. She has two children. Her son is 15 years old, and her daughter is 12 years old. She likes to watch movies and sing songs. |
| 1. Mrs. Brown is . |
[ ] |
| A. French B. English C. Chinese D. Canadian |
| 2. Mrs.Brown can speak . |
[ ] |
A. one language (语言) |
| 3. Mrs.Brown comes from ______. |
[ ] |
| A. London B. Manchester C. New York D. Ottawa |
| 4. Mrs.Brown has ______. |
[ ] |
| A. one son and two daughters B. two sons and two daughters C. two sons D. one son and one daughter |
| 5. Mrs.Brown likes ______. |
[ ] |
| A. watching Tv and listening to the radio. B. watching movies and playing on the computer C. listening to the radio and singing song. D. watching movies and singing songs. |