男，57岁，肠梗阻，拟在全麻下剖腹探查术，既往有支气管哮喘病史8年。如麻醉过程中发生

单词拼写(共15小题, 每小题1分，满分15分)

小题1:Generally speaking, snow announces the a__________ of winter.

小题2:The students can’t enter the lab without the chemistry teacher’s a___________.

小题3: What can you do to c____________ to the poor?

小题4:The twins are s__________ to each other in appearance, but they have nothing in common in nature.

小题5:Charlie Chaplin, a famous actor, often appeared on the stage, s________ his stick in the air.

小题6:Unfortunately, he was d_________ in the last election.

小题7:The soldiers fought bravely to d________ against the enemies for their homeland.

小题8:The news that our team won spread t_________ the whole school.

小题9:In my opinion, parents should be s________ with their kids about table manners.

小题10:Children have a natural c_________ about the world around them.

小题11:When he came to life, he found himself lying on the bed, s_________ by many people.

小题12:Learning English as a second language can be a big c__________.

小题13:The pigeon r________ peace, which is the most important thing for human being.

小题14:Whenever he is late, he always has v_______ reasons for his being late.

小题15:Everyone was silent as he a__________ the winner of competition.

下列现象中不能说明存在大气压的是 [ ]

A． 堵上茶壶盖上的小孔茶壶里的水不容易被倒出来　

B． 用吸管能从汽水瓶中把汽水吸入口中　

C． 医生提起针管里的活塞，使药液通过针头进入针管　

D． 用抽气机抽出灯泡里的空气

简述左右主支气管的特点及临床意义。

小丽的储蓄罐中有100枚硬币，她把其中的贰分币全换成等值的伍分币，硬币总数变成73枚，她又把壹分币也换成等值的伍分币，硬币总数变成33枚。他的储蓄罐中的贰分币和壹分币原来共有多少元( )

A．1.4
B．2.0
C．3.14
D．4.9

说明在SG1025引进型锅炉两台并列运行的送风机中，停用其中一台送风机的操作步骤。