临床上怀疑下颌下腺导管阳性结石时，首选以下哪种检查（） A.下_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

临床上怀疑下颌下腺导管阳性结石时，首选以下哪种检查（）

A.下颌曲面断层

B.下颌下腺造影

C.下颌横断片+颌下腺侧位片

D.下颌骨后前位片

E.下颌骨侧位片

答案

参考答案：C

补全对话，情景问答

读一读，给下列的问句选择答语。

( ) 1. Let's have some peaches.
( ) 2. How many bananas do you have?
( ) 3. Who's this boy?
( ) 4. This is my friend.
( ) 5. Can I have an orange, please?

A. I have four.
B. Sure. Here you are.
C. Nice to meet you.
D. OK.
E. He's my brother.

单项选择题

我国的国防法规，按立法权限区分为（）层次。

A、二个

B、四个

C、六个