下颌第三磨牙阻生，什么情况下适宜做 龈瓣切除术（） A．水平阻生，冠周炎反复发作 B

与子宫脱垂发生无关的结构是（）

A.子宫颈周围

B.肛提肌

C.主韧带

D.阔韧带

E.宫骶韧带

Are you a man or a mouse When people ask this question they want to know (1) you think you are a (2) person or a coward. But you will never really know the answer to this question (3) you are tested in real life. Some people (4) they are brave but when they come face to face with real (5) , they act like cowards. Others think of themselves as cowards, but when they meet danger, they act like (6) .Lenny had always thought of himself as a (7) person. He got worried before examinations. He worried about his job and health. All he wanted in life was to be safe and healthy. (8) , on January 15th, 2002, a plane crashed into the Potomac River in Washington. Lenny went to the river to See what was happening. He saw a woman in the (9) water. Lenny did not feel afraid. He kept very (10) and did a very dangerous thing. He jumped into the Potomac, (11) to the woman, and kept her head (12) the water. Seventy-eight people died that day. Thanks to Lenny, it was not (13) .When you are in a very (14) situation and feel afraid, the body automatically produces a chemical in the blood. The chemical is called adrenalin. (15) adrenalin in the blood system, you actually feel per and per and are (16) to fight or run away. However, when you are absolutely terrified, the body can produce too much adrenalin. Where this (17) , the muscles become very hard and you find you (18) move at all. You are then paralyzed with fear. This is (19) when we are very frightened, we sometimes say we’re "petrified". This word comes from the Greek word "petros", which means "stone". We are (20) frightened that we become stonelike.

第（19）空应选择（）

A．where

B．how

C．because

D．why

客人要求在规定时间前送回衣服，怎么办？

急性阑尾炎属

A．蜂窝织炎
B．脓肿
C．卡他性炎
D．纤维素性炎
E．积脓

基本授权的频率为（）一授。

A.半年

B.一年

C.两年

D.三年