简述口腔颌面外科手术的麻醉特点。

There is an old tiger in the forest (森林). He doesn’t want to look for (寻找) food now. He often lets other animals get him some food to eat.

One day, he sees a monkey and says, “I am hungry, monkey. Go and get me something to eat.” “I can’t do that now, tiger,” the monkey says, “There is another tiger over there. He does not let me get anything for you to eat. I am afraid of (害怕) him.” “What?” says the old tiger. “Take me to that tiger. I want to talk to him.”  The monkey and the tiger go to the bridge over the river (河). “Now look down at the water.” says the monkey. “Do you see the tiger?” “Yes, I do,” says the old tiger. “Let me eat him.” Then the tiger jumps (跳) into the river.

A. in the zoo         B. in the garden                    

C. in the forest      D. in the park

小题1:How many tigers and monkeys are there in the story?

A．Two tigers and two monkeys.

B．Two tigers and one monkey.

C．One tiger and two monkeys.

D．One tiger and one monkey.小题2:Why do other animals get food for the tiger?

A．Because they are afraid of him.

B．Because only they can find some food.

C．Because they are his friends.

D．Because they like to do that.小题3:The monkey ________.

A．goes to get something to eat

B．goes to the bridge with the tiger

C．knows there is another tiger

D．tells the tiger to jump into the water小题4:Which of the following is right(正确的)?

A．The tiger is very clever.

B．The monkey eats the tiger.

C．The tiger eats another tiger.

D．The tiger jumps into the water.

男性患者41岁，左侧颈部肿块、无疼痛、发热、可扪及质软的结节，CT检查示甲状腺左叶占位性病变。甲状腺核素显像示左叶"冷"结节。

甲状腺结节常见的表现为（）

A.功能自主性"热"结节

B."冷"结节

C."温"结节

D."凉"结节

E.以上都可能

绝经后骨质疏松症常出现于绝经后（）。

A.3～5年

B.5～10年

C.10～15年

D.15～20年

E.20年以后

螺旋桨特性曲线变陡的情况是（）

A、船体污底或进入浅航区

B、起航状态

C、螺旋桨配置过重

D、以上都是

有机磷中毒是由于抑制下列哪一酶引起的

A．巯基酶

B．细胞色素氧化酶

C．环化加氧酶

D．胆碱酯酶

E．过氧化物酶