问题
单项选择题
目前认为人类主要致龋菌是
A．乳酸杆菌
B．唾液链球菌
C．血链球菌
D．变形链球菌
E．轻链球菌
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
目前认为人类主要致龋菌是
A．乳酸杆菌
B．唾液链球菌
C．血链球菌
D．变形链球菌
E．轻链球菌
参考答案：D
| 改错 |
| 1. The girl is so kind and often helps her mother doing housework on Sunday. A B C D 2. The lady is good at business and she will to be a rich woman soon. A B C D 3. My friend bought lots of snacks in his way to school yesterday morning. A B C D 4. Some readers are going to eat many fruit and vegetables next year than this year. A B C D 5. I want to be a reporter because I enjoy to talk with people. A B C D |