计的水平井造斜轨道由上造斜段、下造斜段组成则该轨道称为()
A.单一稳斜轨道
B.稳斜加下造斜段轨道
C.上造斜段加稳斜段轨道
D.双圆弧造斜轨道
参考答案:D
句型转换
1. We got over 1,000 letters from our readers about their New Year's resolutions.(改为同义句)
We got ________ ________ 1,000 letters from our readers about their New Year's resolutions.
2. She is going to take acting lessons tomorrow. (改为否定句)
________________________________________ .
3. My cousin is going to leave at six tomorrow.(对划线部分提问)
________________________________________ ?
4. What are you going to do this weekend? (根据你的情况回答问题)
5. Many students are going to work harder at school this year.(改为同义句)
________ ________ students are going to work harder at school this year.
与下颌第一乳磨牙相似的恒牙是()。
A.下颌第一恒磨牙
B.下颌第二恒磨牙
C.下颌第一双尖牙
D.下颌第二双尖牙
E.没有恒牙与其相似