root canal system
根管系统是指髓腔除髓室以外的部分,包括根管、管间吻合、根管侧支、根尖分歧、根尖分叉及副根管,它们共同组成根管系统。
举一反三
- 默认情况下，root用户属于以下哪个用户组？ A: user B: admin C: root D: system
- In land plants we have separation of work, the root system anchors and absorbs the water, the shoot system makes energy and makes seeds.( )
- 下列属于IAD登录账号的是（） A: root B: system C: admin D: user
- Java中所有类的父类是（）。 A: System B: Java C: Object D: Root
- In 1930s, on the ________ of Zhengguoqu Canal, Jinghui Canal was built, which has benefited people living in the Guanzhong Plain up to now.
内容
- 0
The Panama Canal was built by a () consortium.
- 1
The Panama Canal was finally built by a ( ) consortium.
- 2
Where is the Panama Canal located?[1.5分]
- 3
The<br/>following descriptions,which is right() A: Nematodes<br/>have complete alimentary canal B: Trematodes<br/>have complete alimentary canal C: Cestodes<br/>have complete alimentary canal D: Cestodes<br/>have body cavity
- 4
Which is true on the subarachnoid space in the vertebral canal（）。