颌面外伤患者，咬合错乱，下唇麻木张口受限，经X线检查如图。应

搜题请搜索小程序“爱下问搜题”

问题单项选择题 A1/A2型题

颌面外伤患者，咬合错乱，下唇麻木张口受限，经X线检查如图。应该为（）

A.上颌骨骨折

B.颧骨骨折

C.颧弓骨折

D.下颌骨骨折

E.牙槽突骨折

答案

参考答案：D

补全对话，情景问答

1. — Look! What is this? — This is a ____________ of China.
2. — Where is Shanghai? — It's ____________ of Beijing.
3. — Do you know the capital city of this country? — I know. It's ____________.
4. — Do you see the flag of ____________? — Yes, I do.
5. The U. K. has a king or queen. This is a ____________.

不定项选择题

下列对于淀粉和纤维素的叙述中，正确的是[ ]

A．互为同分异构体

B．化学性质相同

C．碳、氢、氧元素的质量比相同

D．属于同一类有机物