问题 单项选择题

患者被他人伤及上中切牙,自觉患牙伸长和松动并咬合痛,检查见上中切牙无明显移位,叩(+)-(++)松动。

根据临床表现,该病例的临床诊断属于上中切牙()

A.冠根折

B.根析

C.冠折

D.挫伤

E.脱位

答案

参考答案:D

阅读理解

阅读理解。根据要求完成下列各题。

        Mars is the fourth planet from the sun and is commonly known as the Red Planets. The rocks, soil and sky

of it are a little red or pink. Its name was given by the Romans in honor of their god of war.

        People on the earth need oxygen to breathe. There is almost no oxygen on Mars. Living on Mars would be

like living on a very high mountain. There would be little air. It might be 50 degrees above zero at noon and 100

degrees below zero at night. We know that Mars has carbon. Through a telescope, Mars looks red. In some

places, it seems gray. At times the gray turns gray-green, then brown, then gray again. The gray-green may be

a kind of plant color which changes with the seasons.

        Life is expected on Mars by scientists, because there are distinct seasons on the planet's surface. This

condition might support plants. However, some researches find if Mars had life, it must have been a long time

ago. For Mars' first 600 millions years, it had plenty of water and proper temperatures for life. But now the

planet's environment has changed. Mars is not a pleasant place for any form of life.

1. 根据解释,在短文中找出相应的单词或短语。

    ______: famous        ______: sometimes

2. Its name was given by the Romans in honor of their god of war.

(改为主动语态的句子) __________________________________________________________________

3. Why is life expected on Mars by scientists?

(回答问题) __________________________________________________________________

4. There is almost no oxygen on Mars.

(改为反意疑问句) There is almost no oxygen on Mars, _____ _____?

5. But now the planet's environment has changed. Mars is not a pleasant place for any form of life.

(翻译成汉语) __________________________________________________________________

判断题