LeFortⅠ型骨折是______________或水平骨折。典型的骨折线从____

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问题填空题 B型题

LeFortⅠ型骨折是______________或水平骨折。典型的骨折线从______________________下缘，经过________________，____________________，____________至上方，水平地向后延伸至两侧________________附近。

答案

参考答案：低位；梨状孔；根尖下；颧牙槽嵴；上颌结节；上颌骨翼突缝

补全对话，情景问答

补全对话，每空一词。

—Excuse me, Mr. Green, where are you __1__?

—I'm from London. That's in __2__.

—Oh, great! Where do you __3__ now?

—I work in shanghai.

—__4__ do you do?

—I'm a __5__. I drive a bus.

— How many children do you have?

—I have one.

—Do you have a son __6__ a daughter?

—I have a son.-What __7__ he do?

—He's a student. He __8__ in No. 4 Middle School.

—How __9__ is he?

— He's fifteen. Do you have any children?

—Yes. I have a daughter. She's a student, too. She __10__ English very much.

问答题简答题

简述使用矿灯安全注意事项。