问题
单项选择题
玉米茎的维管束鞘为（）
A.薄壁组织
B.厚壁组织
C.厚角组织
D.基本组织
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
玉米茎的维管束鞘为（）
A.薄壁组织
B.厚壁组织
C.厚角组织
D.基本组织
参考答案：B
下列各句均有错误，请将错误画出并将其正确的形式改写在横线上。
| 1. Jim is thirteen year old. | |
| 2. The nineth month is September. | |
| 3. I am born in November. | |
| 4. When year were you born? | |
| 5. When is Leila birthday? | |
| 6. We have a speech contest in each year. | |
| 7. We have a Art Festival at school. | _______ |
| _______ | |
| _______ | |
| _______ | |
| _______ |
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